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1412.04 Correction of Inventorship [R-5] - 1400 Correction of Patents
1412.04 Correction of Inventorship [R-5]
The correction of misjoinder of inventors has been held to be a ground for reissue. See Ex parte Scudder, 169 USPQ 814, 815 (Bd. App. 1971) wherein the Board held that 35 U.S.C. 251 authorizes reissue applications to correct misjoinder of inventors where 35 U.S.C. 256 is inadequate. See also A.F. Stoddard & Co. v. Dann, 564 F.2d 556, 567 n.16, 195 USPQ 97, 106 n.16 (D.C. Cir. 1977) wherein correction of inventorship from sole inventor A to sole inventor B was permitted in a reissue application. The court noted that reissue by itself is a vehicle for correcting inventorship in a patent.
I. CERTIFICATE OF CORRECTION AS A VEHICLE FOR CORRECTING INVEN-TORSHIP
While reissue is a vehicle for correcting inventorship in a patent, correction of inventorship should be effected under the provisions of 35 U.S.C. 256 and 37 CFR 1.324 by filing a request for a Certificate of Correction if:
(A) the only change being made in the patent is to correct the inventorship; and
(B) all parties are in agreement and the inventorship issue is not contested.
See MPEP § 1481 for the procedure to be followed to obtain a Certificate of Correction for correction of inventorship.
II. REISSUE AS A VEHICLE FOR CORRECTING INVENTORSHIP
Where the provisions of 35 U.S.C. 256 and 37 CFR 1.324 do not apply, a reissue application is the appropriate vehicle to correct inventorship. The failure to name the correct inventive entity is an error in the patent which is correctable under 35 U.S.C. 251. The reissue oath or declaration pursuant to 37 CFR 1.175 must state that the applicant believes the original patent to be wholly or partly inoperative or invalid through error of a person being incorrectly named in an issued patent as the inventor, or through error of an inventor incorrectly not named in an issued patent, and that such error arose without any deceptive intention on the part of the applicant. The reissue oath or declaration must, as stated in 37 CFR 1.175, also comply with 37**>CFR 1.63<.
The correction of inventorship does not enlarge the scope of the patent claims. Where a reissue application does not seek to enlarge the scope of the claims of the original patent, the reissue oath may be made and sworn to, or the declaration made, by the assignee of the entire interest under 37 CFR 1.172. An assignee of part interest may not file a reissue application to correct inventorship where the other co-owner did not join in the reissue application and has not consented to the reissue proceeding. See Baker Hughes Inc. v. Kirk, 921 F. Supp. 801, 809, 38 USPQ2d 1885, 1892 (D.D.C. 1995). See 35 U.S.C. 251, third paragraph. Thus, the signatures of the inventors are not needed on the reissue oath or declaration where the assignee of the entire interest signs the reissue oath/declaration. Accordingly, an assignee of the entire interest can add or delete the name of an inventor by reissue (e.g., correct inventorship from inventor A to inventors A and B) without the original inventor's consent. See also 37 CFR 3.71(a) ("One or more assignees as defined in paragraph (b) of this section may, after becoming of record pursuant to paragraph (c) of this section, conduct prosecution of a national patent application or reexamination proceeding to the exclusion of either the inventive entity, or the assignee(s) previously entitled to conduct prosecution." Emphasis added). Thus, the assignee of the entire interest can file a reissue to change the inventorship to one which the assignee believes to be correct, even though an inventor might disagree. The protection of the assignee's property rights in the application and patent are statutorily based in 35 U.S.C. 118.
Where the name of an inventor X is to be deleted in a reissue application to correct inventorship in a patent, and inventor X has not assigned his/her rights to the patent, inventor X has an ownership interest in the patent. Inventor X must consent to the reissue (37 CFR 1.172(a)), even though inventor X's name is being deleted as an inventor and need not sign the reissue oath or declaration. If inventor X has assigned his/her rights to the patent, then inventor X's assignee must consent. In addition to providing the consent, even though inventor X does not sign the reissue oath or declaration as an inventor (since the correction of inventorship does not enlarge the scope of the patent claims), the assignee of the entire interest must sign the reissue oath or declaration as assignee (37 CFR 1.172(a)). Thus, if inventor X has not assigned his/her patent rights, inventor X's signature must be included in the reissue oath or declaration as the assignee. If inventor X has assigned his/her patent rights, inventor X's assignee must sign the reissue oath or declaration as the assignee. For example, a patent to inventors X and Y has no assignee. A reissue application is filed by inventor Y to delete the name of inventor X as an inventor. 37 CFR 1.172(a) provides that a reissue oath or declaration may be made by the assignee/owners of the entire interest, rather than by the inventors, where the scope of the claims is not to be enlarged. However, since inventor X has not assigned his/her patent rights, inventor X must sign the reissue oath or declaration as one of the owners, and consent to the filing of the reissue application by inventor Y. See MPEP § 1410.01.
Where a reissue to correct inventorship also changes the claims to enlarge the scope of the patent claims, the signature of all the inventors is needed. However, if an inventor refuses to sign the reissue oath or declaration because he or she believes the change in inventorship (to be effected) is not correct, the reissue application can still be filed with a petition under 37 CFR 1.47 without that inventor's signature provided the written consent of all owners/assignees as required by 37 CFR 1.172(a) is also submitted. In the situation where a patent to inventors X and Y has no assignee and a reissue application is filed by inventor Y to delete the name of inventor X as an inventor and to broaden the patent. Inventor X refuses to sign the reissue oath or declaration and refuses to provide the consent as required by 37 CFR 1.172(a). In this instance, a 37 CFR 1.47 petition would not be appropriate to permit the filing of the reissue application since the consent requirement of 37 CFR 1.172(a) for each owner/assignee is not met. Resort to the courts would be required to delete the name of inventor X as an inventor where X will not consent to the filing of a reissue application. As stated in the second paragraph of 35 U.S.C. 256, "[t]he court before which such matter is called in question may order correction of the patent on notice and hearing of all parties concerned and the Director shall issue a certificate accordingly."
The reissue application with its reissue oath or declaration under 37 CFR 1.175 provides a complete mechanism to correct inventorship. See A.F. Stoddard & Co. v. Dann, 564 F.2d at 567, 195 USPQ at 106. A request under 37 CFR 1.48 or a petition under 37 CFR 1.324 cannot be used to correct the inventorship of a reissue application. If a request under 37 CFR 1.48 or a petition under 37 CFR 1.324 is filed in a reissue application, the request or petition should be dismissed and the processing or petition fee refunded. The material submitted with the request or petition should then be considered to determine if it complies with 37 CFR 1.175. If the material submitted with the request or petition does comply with the requirements of 37 CFR 1.175 (and the reissue application is otherwise in order), the correction of inventorship will be permitted as a correction of an error in the patent under 35 U.S.C. 251.
Where a reissue application seeks to correct inventorship in the patent and the inventors are required to sign the reissue oath or declaration (rather than an assignee of the entire interest under 37 CFR 1.172) due to a broadening of any claims of the original patent, the correct inventive entity must sign the reissue oath or declaration. Where an inventor is being added in a reissue application to correct inventorship in a patent, the inventor being added must sign the reissue oath or declaration together with the inventors previously designated on the patent. For example, a reissue application is filed to correct the inventorship from inventors A and B (listed as inventors on the patent) to inventors A, B, and C. Inventor C is the inventor being added. In such a case, A, B, and C are the correct inventors, and accordingly, each of A, B, and C must sign the reissue oath or declaration. Where an inventor is being deleted in a reissue application to correct inventorship in a patent and the inventors are required to sign the oath or declaration due to a broadening of any claims of the original patent, the inventor being deleted need not sign the reissue oath or declaration. The reissue oath or declaration must be signed by the correct inventive entity. For example, a reissue application is filed to correct inventorship from inventors A, B, and C (listed as inventors on the patent) to inventors A and B. Inventor C is being deleted as a named inventor. In such a case, A and B are the correct inventors, and accordingly, inventors A and B must sign the reissue oath or declaration but inventor C need not sign the reissue oath or declaration.
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