Vectra Fitness, Inc. v. Tnwk Corporation (Formerly Known as Pacific Fitness Corporation)Vectra Fitness, Inc. v. Tnwk Corporation (Formerly Known as Pacific Fitness Corporation)
Vectra Fitness, Inc. (Vectra) appeals a partial summary judgment of the United States District Court for the Western District of Washington invalidating claims added to Vectra’s U.S. Patent No. 4,809,972 (the ’972 patent) in reissue proceedings.
Vectra Fitness, Inc. v. Pacific Fitness Corp.,
BACKGROUND
I.
On March 7, 1989, the ’972 patent, entitled “Exercise Machine with Multiple Exercise Stations,” was issued to Vectra as assignee. The ’972 patent related to multi-station exercise machines that allow two or more exercise stations to be connected to a single weight stack.
As issued, the ’972 patent contained 27 claims. On February 16, 1990, Vectra submitted a disclaimer to the United States Patent and Trademark Office (PTO), in accordance with
On May 9, 1991, Vectra filed a reissue application that sought to add new claims 28-30 to the ’972 patent. The reissue application, including new claims 28-30, was issued on March 29, 1994, as U.S. Patent No. Re 34,572 (the ’572 patent). Before the district court, the parties stipulated that claims 28-30 were narrower in scope than the claims originally contained in the ’972 patent, but broader in scope than the claims remaining in the patent after the 1990 disclaimer.
II.
Vectra sued TNWK Corporation (TNWK) (formerly known as Pacific Fitness Corporation) for infringement of the ’572 patent on December 4, 1996. In due course, TNWK moved for partial summary judgment. It did so on the ground that claims 28-30 were invalid under
Vectra timely moved to certify the case for interlocutory appeal pursuant to
DISCUSSION
We review a district court’s grant of summary judgment
de novo. See Astra v. Lehman,
I.
As a preliminary matter, Vectra argues that the mishandling of the disclaimer by the PTO prevented it from being “recorded” within the meaning of that term in
The recording of a disclaimer is not dependent upon actions taken by the PTO. The pertinent PTO rule provides as follows:
The disclaimer, to be recorded in the Patent and Trademark Office, must:
(1) Be signed by the patentee, or an attorney or agent of record;
(2) Identify the patent and complete claim or claims, or term being disclaimed. A disclaimer which is not a disclaimer of a complete claim or claims, or term will be refused recordation;
(3) State the present extent of patentee’s ownership interest in the patent; and
(4) Be accompanied by the fee set forth in § 1.20(d).
II.
Turning to the matter of the disclaimer and the reissue, we begin our analysis with the language of the statute.
See Zenith Elec. Corp. v. United States,
The reissue of patents is governed by 35 U.S.C
Whenever, without any deceptive intention, a claim of a patent is invalid the remaining claims shall not thereby be rendered invalid. A patentee, whether of the whole or any sectional interest therein,may, on payment of the fee required by law, make disclaimer of any complete claim, stating therein the extent of his interest in such patent. Such disclaimer shall be in writing, and recorded in the Patent and Trademark Office; and it shall thereafter be considered as part of the original patent to the extent of the interest possessed by the diselaimant and by those claiming under him.
In like manner any patentee or applicant may disclaim or dedicate to the public the entire term, or any terminal part of the term, of the patent granted or to be granted.
(Emphasis added.)
Vectra argues that the plain meaning of the term “claims of the original patent” in
This court has interpreted the term “considered as part of the original patent” in
Vectra does not contest that the disclaimer effectively eliminated the disclaimed claims from the “original patent” within the meaning of that term in
No previous decision of our court has considered the application of the date back rule of
In sum, we conclude that the reading of
The public is entitled to rely upon the public record of a patent in determining the scope of the patent’s claims.
See Vitronics Corp. v. Conceptronic, Inc.,
In a similar vein, after the two-year window for broadening reissues, the public should be able to rely on the scope of non-disclaimed claims.
Cf. Wollensak v. Reiher,
CONCLUSION
For the foregoing reasons, the judgment of the district court is affirmed.
AFFIRMED.
Notes
. All statutory references are to the 1994 version of the United States Code.
. As in effect in 1990, the regulation provided as follows:
A disclaimer under35 U.S.C. § 253 must be accompanied by the fee set forth in § 1.20(d) and identify the patent and the claim or claims which are disclaimed, and be signed by the person making the disclaimer, who shall state therein the extent of his or her interest in the patent.