Sparton Corp. v. United States

399 F.3d 1321, 73 U.S.P.Q. 2d (BNA) 1919, 2005 U.S. App. LEXIS 3384, 2005 WL 451486
CourtCourt of Appeals for the Federal Circuit
DecidedFebruary 28, 2005
Docket2003-5169
StatusPublished
Cited by10 cases

This text of 399 F.3d 1321 (Sparton Corp. v. United States) is published on Counsel Stack Legal Research, covering Court of Appeals for the Federal Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Sparton Corp. v. United States, 399 F.3d 1321, 73 U.S.P.Q. 2d (BNA) 1919, 2005 U.S. App. LEXIS 3384, 2005 WL 451486 (Fed. Cir. 2005).

Opinion

ARCHER, Senior Circuit Judge.

Sparton Corporation (“Sparton”) appeals the Court of Federal Claims’ (“Claims Court”) grant of summary judgment of invalidity under the on-sale bar of 35 U.S.C. § 102(b). Sparton Corp. v. United States, No. 92-580C (Fed.Cl. Jul. 15, 2003). Because the invention of U.S. Patent Nos. 3,921,120 and 4,029,233 (“the ’120 patent” and “the ’233 patent”) was not the subject of a commercial offer for sale more than one year prior to the effective filing date of these patents (“the critical date”), we re *1322 verse the judgment of the Claims Court and remand for further proceedings.

Background

In 1969, the Navy entered into a contract with Sparton for the procurement of the AN/SSQ-53 DIFAR (Directional Frequency Analysis and Recording) sono-buoy. 1 This sonobuoy is an electroacoustic device used to detect, locate, and classify the source of underwater sounds, such as those generated by submarines. 120 pat., col. 1, II. 11-13. In its original configuration, the SSQ-53 deployed only to a depth of 90 feet and could detect submarines down to approximately 1000 feet. 2 In response to the Soviet Union’s development of technology that permitted its submarines to dive deep beneath the ocean’s isothermic layers, and therefore become undetectable by the SSQ-53s, the Navy sought to acquire a sonobuoy capable of functioning at both a shallow depth and a deeper depth of 500 feet or 1000 feet (“dual depth”).

On March 17, 1971, Sparton submitted an Engineering Change Proposal (“ECP”) 0465-2 to the Navy under its existing contract, proposing to incorporate dual depth operating capability into the existing SSQ-53 DIFAR sonobuoy by modifying the design to incorporate an inverse deployment system. The sonobuoy device described in the ECP included a multi-piece release plate for either retaining or deploying the sonobuoy internal components within or from the sonobuoy housing. However, shortly after the ECP was issued, Sparton developed, and later tested, a sonobuoy having a single-piece release plate. This single-piece release plate performed better than previous release plates and was ultimately used in the modified SSQ-53s Sparton delivered to the Navy under the contract.

On March 29, 1973, Sparton filed a patent application relating to a dual depth sonobuoy design. The ’120 patent issued as a result and is directed to a sonobuoy deployment system. Sparton then filed a divisional application resulting in the ’233 patent, which is drawn to a sonobuoy release plate. Both patents contain claim limitations drawn to a single piece release plate for a sonobuoy.

In 1992, Sparton filed suit in the Claims Court against the United States (“government”) to recover money damages under 28 U.S.C. § 1498(a) for the government’s unlicensed use of its inventions protected by the ’120 and the ’233 patents. The government maintained that the patents were invalid under the on-sale bar of 35 U.S.C. § 102(b) and moved for summary judgment of invalidity. The Claims Court found that the subject matter of the ’120 and ’233 patents was offered for sale before the critical date. Sparton, No. 92-580C, slip op. at 2. The court also found that the experimental use exception did not help Sparton, as Sparton’s sale of the device at issue was primarily for commercial, not experimental, purposes. Id. As such, the Claims Court granted the government’s motion, ruling that the patents were invalid in view of the on-sale bar.

Sparton now appeals, and we have jurisdiction pursuant to 28 U.S.C. § 1295(a)(3).

Analysis

We review a Claims Court grant of summary judgment de novo, Monon Corp. *1323 v. Stoughton Trailers, Inc., 239 F.3d 1253, 1257 (Fed.Cir.2001). Although the ultimate determination of whether a patent is invalid under 35 U.S.C. § 102’s on-sále bar is a question of law, this determination is based upon underlying factual considerations. Id.

In order for a patent to be held invalid under the on-sale bar, two conditions must be satisfied before the critical date:

First, the product must be the subject of a commercial [sale] or offer for sale.... Second, the invention must be ready for patenting. That condition may be satisfied in at least two ways: by proof of reduction to practice before the critical date; or by proof that prior to the critical date the inventor had prepared drawings or other descriptions of the invention that were sufficiently specific to enable a person skilled in the art to practice the invention.

Pfaff v. Wells Elec., Inc. 525 U.S. 55, 67-68, 119 S.Ct. 304, 142 L.Ed.2d 261 (1998). While the Supreme Court has not explained what is necessary for a “commercial offer for sale,” we have held that two elements are necessary. Namely, a court must find that (1) there was a “commercial offer”; and (2) that offer was for the patented invention. Scaltech, Inc. v. Retec/Tetra, L.L.C., 269 F.3d 1321, 1328 (Fed.Cir.2001). Here, the Claims Court found that all the requirements for the on-sale bar were met. We disagree. We hold that the patented invention of neither the T20 nor the ’233 patent was the subject of the admitted offer for sale prior to the critical date. 3

The alleged offer for sale in this case is Sparton’s March 17, 1971 submission of an ECP proposing to incorporate dual depth operating capability into the existing SSQ-53 design. The ECP included a description of the dual depth sonobuoy deployment design, including drawings. This description and drawings contained a release plate mechanism. The parties disagree as to what type of release plate was identified. The specific release plate mechanism proposed in the ECP is not relevant to our analysis, because, as the Claims Court noted,

the government concedes, and the parties do not dispute, the release plate mechanism described in the T20 and ’233 patents is not the release plate ■ that was part of the original design proposed in the ECP; in other words, the ... Contract does not include a release plate that meets the description of the release plate limitation of the claimed inventions.

Sparton, No. 92-580C, slip op. at 19. This fact is of utmost importance, as both sides agree that what was offered in the ECP was not the patented invention.

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399 F.3d 1321, 73 U.S.P.Q. 2d (BNA) 1919, 2005 U.S. App. LEXIS 3384, 2005 WL 451486, Counsel Stack Legal Research, https://law.counselstack.com/opinion/sparton-corp-v-united-states-cafc-2005.