ORDER GRANTING IN PART AND DENYING IN PART STARSIGHT’S MOTION TO COMPEL PRODUCTION OF DOCUMENTS

I. INTRODUCTION

Plaintiff Starsight Telecast, Inc.’s (“Star-sight”) motion to compel production of privileged documents was heard on October 5, 1994. James Vickery of Cooley Godward Castro Huddleson & Tatum appeared on behalf of Starsight. Elizabeth Mann of How-rey & Simon appeared on behalf of defendants Gemstar Development Corp. (“Gems-tar”) and Michael Levine (“Levine”). Thereafter, Gemstar submitted all of the contested documents for in camera review. 1 Having reviewed the contested documents, considered the comments of counsel, and good cause appearing, Starsight’s motion is GRANTED in part and DENIED in part as follows.

II. BACKGROUND

A Starsight’s Allegations

This is a patent infringement suit in which two competing companies, Gemstar and Star-sight, claim preeminent patent rights to exploit a product that is typically referred to as an electronic television guide. Starsight’s complaint against Gemstar and Levine alleges infringement of U.S. Patent No. 5,151,789 (the ’789 patent), entitled “System and Method for Automatic, Unattended Recording of Cable Television Programs.” Starsight Complaint, ¶¶ 13-14. Starsight also seeks a declaratory judgment on several grounds, including that Gemstar’s competing patent, U.S. Patent No. 4,908,713 (the ’713 patent), entitled “VCR Programmer,” is invalid because the inventor of the ’713 patent, Levine, and his attorneys engaged in inequitable conduct by fading to disclose material prior art to the U.S. Patent Office (the “PTO”). Star-sight Complaint, ¶¶ 21-54.

Starsight’s inequitable conduct theory is that during the application process for the ’713 patent, the patent examiner specifically placed Levine and his attorney Allen Krass on notice that the only novel feature in the invention was the “program schedule display generator,” and therefore, prior art relating to that feature was highly relevant and material. Starsight’s Opposition to Gems-tar’s Motion to Compel Production of Documents, pp. 3-4. More specifically, the examiner stated:

U.S. Patent 4,908,713, Notice of Allowability, dated September 14, 1989. 2

Starsight further asserts that it specifically supplied Levine and his attorney with several relevant prior art references during the pen-dency of the ’713 patent application, including the Kruger patent, teletext systems such as “Ceefax” that display TV program information stored locally, and the DIP II and CableData advertisements from Cable Vision Magazine. Levine and his attorney deny that they failed to disclose material prior art, and contend that they were “set up” for the inequitable conduct charge. Gemstar’s Opposition, pp. 4-6. 3

B. Procedural Background

The Court and the parties agreed to a complex scheduling order, which among other things, limited initial discovery to Star-sight’s inequitable conduct claim. Levine later voluntarily produced “all privileged documents created during the prosecution of the [’713 patent], issued on March 13, 1990, that concern any item of alleged prior art that Starsight has identified in its charges of inequitable conduct set forth in its First Amended Complaint.” Gemstar’s Opposition, p. 1. Levine and Gemstar also allowed deposition questioning regarding the substance of the produced documents.

Dissatisfied with the results of Levine’s voluntary production, Starsight presently seeks additional privileged documents generally described as follows:

Starsight’s Motion to Compel Production of Documents, p. 1.

III. DISCUSSION

It is undisputed that the documents described above are privileged. Nevertheless, Starsight asserts that it is entitled to such documents because: (a) Gemstar and Levine, through deposition testimony and through declarations (submitted in support of their motion for summary judgment on the issue of inequitable conduct), have placed Levine *653 and Ms attorney’s intent and knowledge of material prior art at issue; and (b) Levine and Ms attorney’s inequitable conduct before the PTO vitiates the privilege with respect to the prosecution of the ’713 patent application and documents relating to steps taken in furtherance of the concealment of ineqmtable conduct in related applications. Starsight’ Motion, 1:12-19, 7:19-24.

Gemstar and Levine contend that they have merely deMed Starsight’s allegations of ineqmtable conduct, and that a mere demal, without more, is insufficient to place their intent at issue or to trigger a waiver of the attorney-client privilege. They also emphasize that they have not raised a “reliance on counsel” defense, and will not do so. Gems-tar and Levine’s Opposition, p. 9. Gemstar and Levine further argue that the crime/ fraud exception to the attorney-client privilege does not apply to the documents at issue because they post-date the issuance of the ’713 patent, and therefore could not have been prepared in furtherance of any crime or fraud on the PTO. Gemstar’s Opposition, pp. 2-3. 4

A Whether the Attorney-Client Privilege Has Been Waived

In general, a party’s voluntary disclosure of one or more privileged commumcations between the party and Ms attorney waives the privilege as to all commumcations between the party and his attorney on the same subject. Hercules, Inc. v. Exxon Corp., 434 F.Supp. 136, 156 (D.Del.1977); Handgards, Inc. v. Johnson & Johnson, 413 F.Supp. 926, 929 (N.D.Cal.1976); McCormick-Morgan, Inc. v. Teledyne Industries, 765 F.Supp. 611 (N.D.Cal.1991); Duplan Corp. v. Deering Milliken, Inc., 397 F.Supp. 1146, 1161 (D.S.C.1974). The underlying rationale is one of fairness: “A party cannot disclose oMy those facts beneficial to its case and refuse to disclose, on the grounds of privilege, related facts adverse to its position.” Hercules, 434 F.Supp. at 156 .

In General Electric Co. v. Hoechst Cela-nese Corp., for example, the defendants to a patent infringement claim counterclaimed against G.E. for a declaration of noninfringement, invalidity, and unenforceability of GE’s patent. During discovery, defendants requested a number of purportedly privileged documents from GE, asserting, inter alia, that GE waived the privilege by producing evidence that it did not have the requisite “state of mind” to commit fraud on the PTO. General Electric Co. v. Hoechst Celanese Corp., 15 U.S.P.Q.2d 1673 , 1990 WL 154218 (D.Del.1990). GE offered the testimony of a key employee and an attorney, who both demed any recollection of a certain alleged prior art during the relevant period. Id. at 1678 . The witnesses also testified that if they had remembered the alleged prior art, they would have considered it irrelevant to GE’s patent, and therefore they did not have the “intent” to defraud the PTO examiner. Id.

In determimng whether GE waived its privilege, the court reasoned:

Id. at 1679. The court concluded that the oMy way for defendants to refute the testimony offered by GE was to examine the substance of the privileged commumcations pertaining to GE’s prosection of its patent. Nevertheless, the court ordered GE to produce the documents in question for in camera inspection so that the court could determine whether they had any bearing on GE’s *654 state of mind and whether the crime/fraud exception applied. Id. at 1680.

In the present case, Starsight specifically points to the following paragraphs of Levine’s declaration dated December 4,1993, as a basis for finding waiver:

3. Based upon my frequent inventing activity and my efforts to protect those inventions through the United States patent system, I am personally familiar with the rules and regulations of the United States Patent Office as they affect inventors such as myself. In particular, I am personally familiar with the duty to disclose information material to patentability set forth in 37 C.F.R. ¶ 1.56.

4. For over ten years I have been represented in patent matters by Allen Krass, of Krass & Young in Troy, Michigan. It is my custom and practice to disclose to Mr. Krass or to other lawyers working in Mr. Krass’ law firm, any or all prior art about which I am aware that is material to any invention that I am seeking to have patented.

5. All material prior art concerning the subject matter of the ’713 patent about which I was aware during the period preceding the issuance of the ’713 patent was disclosed to my counsel, Allen Krass.

See Johnson Deck, Ex. J. Starsight also specifically cites to the following paragraph of Krass’ declaration, signed December 6, 1993:

22. All material prior art about which I was aware during the prosecution of the applications leading to the issuance of the ’713 patent were disclosed by me or others at my direction to the U.S. Patent and Trademark Office in accordance with 37 C.F.R. § 1.56 .

See Johnson Deck, Ex. K. Starsight argues that these two declarations constitute far more than a mere denial of the inequitable conduct charge, and therefore, resulted in a waiver of the attorney-client privilege.

Starsight further contends that Levine and his patent attorneys, Krass and Marshall, testified extensively at their depositions regarding how the claims of the ’713 Patent differ from the prior art described in conversations with, and correspondence from Star-sight. Starsight’s Motion, p. 7. In support of this contention, Starsight cites to Krass’ comment that the prior art information provided by Starsight was “totally different and less relevant than art that was previously before the patent office.” See Krass Depo., 532:23-534:13 attached as Ex. G to Johnson Deck Starsight also asserts that Marshall similarly testified that the advertisements provided by Starsight were not material to the ’713 patent. See Marshall Depo., 33:23-34:8 attached as Ex. H to Johnson Deck

The deposition testimony and declarations cited above are similar to the testimony offered in General Electric v. Hoechst Cela-nese, supra. In each ease, the testimony and declarations in question address two key elements of the parties’ inequitable conduct claim: knowledge of the purported prior art, and the relevancy or materiality of such art. More specifically, Levine makes affirmative representations in his declaration that he provided his counsel, Krass, with all material prior art about which he was aware. Similarly, Krass specifically states in his declaration that he submitted all material prior art about which he was aware to the PTO. Furthermore, Marshall and Krass testified during their depositions regarding the materiality of the references provided by Starsight. Under the totality of these circumstances, the Court finds that Gemstar and Levine have done more than merely deny Starsight’s charge of inequitable conduct, and therefore they have partially waived the attorney-client privilege as discussed below.

B. Scope of the Waiver

Gemstar and Levine’s voluntary disclosure of privileged communications constitutes a waiver of the attorney-client privilege as to all communications on the same subject matter. Hercules, Inc. v. Exxon Corp., 434 F.Supp. at 156 ; Handgards, Inc. v. Johnson & Johnson, 413 F.Supp. at 929 ; McCormick-Morgan, Inc. v. Teledyne Industries, 765 F.Supp. at 613-614 ; Duplan Corp. v. Deering Milliken, Inc., 397 F.Supp. at 1161 . Ac *655 cordingly, the scope of the waiver in the present case extends to communications concerning how the alleged prior art references identified in Starsight’s charges of inequitable conduct relate to the ’713 patent application before the PTO, including continuation and continuation-in-part applications arising out of the application that matured into the ’713 patent. See Hercules, 434 F.Supp. at 156 (citing International Business Machines v. Sperry Rand Corp., 44 F.R.D. 10 (D.Del.1968); International Paper Co. v. Fibreboard Corp., 63 F.R.D. 88 (D.Del.1974); Lee National Corp. v. Deramus, 313 F.Supp. 224 (D.Del.1970)); Handgards, Inc., 413 F.Supp. at 929 (citing Garfinkle v. Arcata National Corp., 64 F.R.D. 688 (S.D.N.Y.1974)).

After conducting an in camera review, the Court finds that the attorney-client privilege has been waived as to the following documents that refer to the prior art identified in Starsight’s charges of inequitable conduct: Nos. 267, 321, 443, 454, 474, 476, and 477. 5 The remaining contested documents do not fall within the subject matter of Levine and Krass’ declarations and deposition testimony.

There is no basis for the expansive waiver sought by Starsight. The waiver exception has been narrowly construed, and has been applied “if facts relevant to a particular, narrow subject matter have been disclosed in circumstances in which it would be unfair to deny the other party an opportunity to discover other relevant facts with respect to that subject matter.” Hercules, 434 F.Supp. at 156 ; See also Kelsey-Hayes v. Motor Wheel Corp., 155 F.R.D. 170 (W.D.Mich.1991). “If a discernible line exists between the information withheld and the information disclosed, the line should be maintained.” American Standard, Inc. v. Pfizer Inc., 229 U.S.P.Q. 897 , 1986 WL 9713 (D.Del.1986), citing International Business Machines, Corp. v. Sperry Rand Corp., 44 F.R.D. 10, 13 (D.Del.1968). “Ultimately, therefore, it is the subject matter of the documents disclosed, balanced by the need to protect the frankness of client disclosure and to preclude unfair partial disclosures, which must guide the Court.” Id. Gemstar and Levine have already provided Starsight with all privileged documents created during the prosecution of Levine’s ’713 patent that concern any of the alleged prior art that Starsight provided to Levine and Krass. See Gemstar’s Opposition, p. 1. The remaining contested documents simply will not shed any new light on the information already produced to Star-sight. Considering the documents already produced by the defendants, the deposition testimony and declarations of Messrs. Levine and Krass, and applying a rule of fairness, the Court finds that the non-disclosure of the remaining contested documents does not unfairly deprive Starsight of access to the factual basis for the denials of Levine and Krass.

C. The Crime/Fraud Exception

Documents or communications which otherwise are protected by the attorney-client privilege may be discoverable if made in furtherance of a crime or fraud. Clark v. U.S., 289 U.S. 1 , 53 S.Ct. 465 , 77 L.Ed. 993 (1933); Hercules, supra. In the patent application context, to pierce the attorney-client privilege, a party must establish a prima facie case of fraud on the PTO. Specifically, the party must show (1) a knowing, willful and intentional act of misrepresentation or omission before the PTO, (2) that the misrepresentation or omission was material, and (3) reliance. American Optical Corp. v. United States, 179 U.S.P.Q. 682 , 684, 1973 WL 20128 (Ct.Cl.1973). See also, Bulk Lift International, Inc. v. Flexcon Systems, Inc., 122 F.R.D. 493 , 9 U.S.P.Q.2d 1355, 1362 (W.D.La.1988).

The party seeking to pierce the attorney-client privilege must also show that the communications were made in furtherance of the fraud. Hercules, 434 F.Supp. at 155 . “Communications made before the fact of or during the commission of a fraud are not protected, since to allow protection to attach to such communications would permit an attorney to be a principal or accessory to a *656 fraud without fear of discovery and would permit the client to commit fraud with the aid of legal advice beforehand.” Id. On the other hand, communications after the fact remain protected. Id.

Having carefully reviewed the documents at issue in camera, the Court concludes that none of the contested documents could be said to have been prepared in furtherance of fraud upon the PTO. Most of the documents at issue do not even mention the purported prior art supplied by Star-sight. The very few documents that do mention Starsight’s prior art references were prepared after the ’713 patent was issued. Although Starsight suggests that documents post-dating the issuance of the ’713 patent may nevertheless disclose a continuing plan to commit fraud on the PTO, it is clear after conducting an in camera review that the documents do not, in fact, hint of any such plan. Accordingly, none of the documents at issue are discoverable based on the crime/ fraud exception.

IV. CONCLUSION

Gemstar and Levine have waived the attorney-client as to the following documents that refer to the prior art identified in Star-sight’s charges of inequitable conduct: Nos. 267, 321,443, 454, 474,476, and 477. Accordingly, Starsight’s motion to compel production of documents is GRANTED in part as to documents nos. 267, 321, 443, 454, 474, 476, and 477, and DENIED in part as to the remaining contested documents.

IT IS SO ORDERED.

. The contested documents are identified on a privilege log entitled, “Revised Log of Starsight’s Selected Documents It Seeks To Compel From the Levine Privilege Log.”

. See Johnson Decl. in Support of Starsight's Motion to Compel Production of Documents, Ex. I, filed Sept. 22, 1994.

. The so-called "set up” is described in detail in this court’s Order (1) Granting in Part and Denying in Part Gemstar and Levine's Motion to Compel Production of Documents; and (2) Granting in Part and Denying in Part Starsight’s Counter Motion For A Protective Order, dated November 16, 1994.

. Gemstar and Levine also assert that they produced documents and deposition testimony relating to the alleged prior art only because Star-sight expressly agreed that the productions would not result in a waiver of the attorney-client privilege, and that finding a waiver under these circumstances would unfairly "punish” them for cooperating with opposing counsel. Gemstar's Opposition, p. 2. However, Starsight asserts that the agreement was premised on the understanding that the production would not be selective. Starsight’s Reply, p. 5, n. 3.

. Although these documents post-date the issuance of the '713 patent, they are within the scope of the subject matter waiver. See McCormick-Morgan, Inc. v. Teledyne Industries, Inc., 765 F.Supp. at 613-14 (it is inappropriate to limit waiver on a temporal basis).