Unfortunately, if he doesn't sign off on the document from PTO we may be forced to take legal action to get him to sign off. It won't be approved until they sign off, therefore, no approval IMHO.I believe the board's efforts to get PTO to finally evaluate wasn't on the agenda of TPL for sure and PTSC may have been waiting for court success before addressing PTO

There is nothing to "sign off":

2288 Issuance of Ex Parte Reexamination Certificate [R-7]

35 U.S.C. 307 Certificate of patentability, unpatentability, and claim cancellation.

(a) In a reexamination proceeding under this chapter, when the time for appeal has expired or any appeal proceeding has terminated, the Director will issue and publish a certificate canceling any claim of the patent finally determined to be unpatentable, confirming any claim of the patent determined to be patentable, and incorporating in the patent any proposed amended or new claim determined to be patentable.

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37 CFR 1.570 **>Issuance and publication of ex parte reexamination certificate concludes ex parte reexamination proceeding.

(a) To conclude an ex parte reexamination proceeding, the Director will issue and publish an ex parte reexamination certificate in accordance with 35 U.S.C. 307 setting forth the results of the ex parte reexamination proceeding and the content of the patent following the ex parte reexamination proceeding.

(b) An ex parte reexamination certificate will be issued and published in each patent in which an ex parte reexamination proceeding has been ordered under § 1.525 and has not been merged with any inter partes reexamination proceeding pursuant to § 1.989(a). Any statutory disclaimer filed by the patent owner will be made part of the ex parte reexamination certificate.<

(c) The ex parte reexamination certificate will be mailed on the day of its date to the patent owner at the address as provided for in § 1.33(c). A copy of the ex parte reexamination certificate will also be mailed to the requester of the ex parte reexamination proceeding.

(d) **>If an ex parte reexamination certificate has been issued and published which cancels all of the claims of the patent, no further Office proceedings will be conducted with that patent or any reissue applications or any reexamination requests relating thereto.<

(e) If the ex parte reexamination proceeding is terminated by the grant of a reissued patent as provided in § 1.565(d), the reissued patent will constitute the ex parte reexamination certificate required by this section and 35 U.S.C. 307.

(f) A notice of the issuance of each ex parte reexamination certificate under this section will be published in the Official Gazette on its date of issuance.

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Be well