Golden Valley Microwave Foods, Inc. v. Weaver Popcorn Co.

837 F. Supp. 1444, 24 U.S.P.Q. 2d (BNA) 1801, 1992 U.S. Dist. LEXIS 21815
CourtDistrict Court, N.D. Indiana
DecidedJuly 22, 1992
DocketCiv. No. F 88-251
StatusPublished
Cited by12 cases

This text of 837 F. Supp. 1444 (Golden Valley Microwave Foods, Inc. v. Weaver Popcorn Co.) is published on Counsel Stack Legal Research, covering District Court, N.D. Indiana primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Golden Valley Microwave Foods, Inc. v. Weaver Popcorn Co., 837 F. Supp. 1444, 24 U.S.P.Q. 2d (BNA) 1801, 1992 U.S. Dist. LEXIS 21815 (N.D. Ind. 1992).

Opinion

MEMORANDUM DECISION AND ORDER

WILLIAM C. LEE, District Judge.

This matter is before the court for a decision on the merits following a bench trial. On August 22,1988 Golden Valley Microwave Foods, Inc. (Golden Valley) commenced an action against Weaver Popcorn Company, Inc. (Weaver) for patent infringement. Weaver filed its answer, affirmative defenses, and counterclaims on November 2, 1988. Count I of Weaver’s counterclaim alleged, inter alia, fraud and/or inequitable conduct on the part of Golden Valley before the United States Patent and Trademark Office (the Patent Office). On August 9, 1989 the court granted the motion of Beatrice/Hunt Wesson, Inc. (Hunt-Wesson) and American Packaging Corp. (American Packaging) to intervene as defendants in this action. On November 21, 1989 Golden Valley filed an amended complaint against all three defendants for the purpose of adding a newly issued patent to its infringement charges against the defendants. On April 19, 1991 a stipulated order was entered in which Golden Valley’s amended complaint was dismissed with respect to Hunt-Wesson.

By order entered July 9, 1991, this court granted the motion of defendant Weaver to bifurcate the case and try separately the issue of whether Golden Valley committed inequitable conduct before the Patent Office in the process of obtaining patents 4,735,513 (’513) and/or 4,878,765 (’765), the two patents in suit in this litigation. The trial of this issue commenced on January 21, 1992, with the defendants proceeding to present their case-in-chief first, and the court heard final arguments on February 5, 1992. The final post-trial filings were submitted to the court on May 15, 1992. The following Findings of Fact and Conclusions of Law are entered pursuant to Federal Rule of Civil Procedure 52(a), after having carefully studied the record and after having determined the credibility of the witnesses.

Summary of Defendants’ Claims

Defendants Weaver Popcorn Company, Inc. and American Packaging Corporation have claimed that Golden Valley committed several acts of inequitable conduct. With respect to the ’513 patent, defendants claim: (a) that Golden Valley failed to disclose a materially-related prior patent application, 612,723 (’723 application), which had been twice rejected by the Patent Office and which contained materially inconsistent representations and important prior art that was withheld during the prosecution of the ’513 and ’765 patents; (b) that Golden Valley filed a materially misleading affidavit in August, 1987 which caused the ’513 patent to issue; (c) that Golden Valley failed to disclose its litigation with James River Corporation; and (d) that Golden Valley failed to disclose material prior art.

With respect to the second patent in suit, the ’765 patent, defendants claim that Golden Valley: (a) continued to conceal the ’723 application and its prosecution history; (b) failed to correct the August, 1987 affidavit and compounded the material misrepresentations in that affidavit; and (c) withheld material prior art.

Findings of Fact

I. Early Developments

The inventors listed in the ’513 and ’765 patents, Mr. James Watkins, Mr. David An-[1448]*1448dreas and Mr. David Cox, are or were employees of Golden Valley who, prior to their employment by Golden Valley, were employed by the Pillsbury Company where they were involved with the design, development and/or marketing of microwave popcorn1. Lawrence Brandberg, who was involved with preparing various Affidavits and Declarations regarding “comparative testing” in the ’513 and ’765 applications, was also a former employee of the Pillsbury Company as was James Harmon, Golden Valley’s independent patent counsel. At Pillsbury, Mr. Harmon was an in-house patent counsel and worked with Messrs. Watkins, Andreas, Cox and Brandberg2. Plaintiff’s expert witness, Charles Turpin, who is presently employed by Golden Valley, was also a former employee of the Pillsbury Company3.

In the early to mid 1970’s the Pillsbury Company introduced its microwave popcorn bag in which an inner ply of greaseproof paper was adhesively laminated (bonded) to an outer ply of kraft paper without any microwave interactive material. Golden Valley sold ready-to-pop popcorn in this bag during the 1970’s and early 1980’s and it enjoyed some commercial success. The construction of Golden Valley’s ready-to-pop popcorn bag corresponded to the structure disclosed in the Brandberg et al. 3,973,045 (’045) patent, of which Mr. Andreas was a co-inventor4,5. For example, under the heading “Summary of the Invention” the Brandberg ’045 patent states:

The package includes a flexible and expandable body such as a gussetted bag formed from two plys of paper. The package has no openings or vents of any kind so that steam given off while heating will expand the bag.

Further, under the heading “Preferred Embodiments” the Brandberg ’045 patent states:

The package preferably consists of two layers of flexible sheet material. One preferred outer sheet material is bleached kraft paper. A suitable liner 24 consists of glasine paper.

Col. 2, 1. 29-32.

All of the former Pillsbury employees who later associated with Golden Valley (Messrs. Harmon, Andreas, Watkins, Cox, Brandberg, and Turpin) were thoroughly familiar with the Pillsbury nonsusceptor popcorn bag, and Messrs. Andreas, Harmon, and Brandberg were familiar with experimentation Pillsbury had conducted in the area of susceptor technology (the microwave interactive material that reacts in the presence of microwave energy to absorb and transfer heat)6. On March 22, 1982 Mr. Andreas had obtained copies of the Borek 4,219,573 (’573) and Winters 4,283,427 (’427) patents for “informational purposes” from Mr. Borek7,8. The Abstract of the Borek ’573 patent describes the invention as follows:

A package for popping popcorn in a microwave oven is provided. The package includes an expandable container adapted to contain popcorn, oil and salt which when exposed to microwave radiation, the oil and popcorn will become heated and the popcorn will pop (steam produced by the heating will expand the container to accommodate the popped popcorn). The container has one wall with a thermal insulating pad associated therewith which improves the popping performance of the popcorn by preventing heat loss from the package to the oven floor.

[1449]*1449The Abstract of the Winters ’427 patent describes the invention as follows:

A microwave heating package, and a method of microwave heating. Both the package and the method employ a lossy chemical susceptor which upon continued exposure to microwave radiation becomes substantially microwave transparent, thus building into the system a unique maximum temperature shut off at the point at which the chemical susceptor becomes microwave transparent. The chemical sus-ceptor is comprised of a combination of a solute, such as inorganic salts of Group IA and IIA, and a polar solvent for the solute, such as water. The chemical susceptor may be composed of a hydrated form of the inorganic salts.

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837 F. Supp. 1444, 24 U.S.P.Q. 2d (BNA) 1801, 1992 U.S. Dist. LEXIS 21815, Counsel Stack Legal Research, https://law.counselstack.com/opinion/golden-valley-microwave-foods-inc-v-weaver-popcorn-co-innd-1992.