Assignee not of record may assign small entity

Which documents can an assignee not of record sign?

One question was, what things can an assignee sign, if he has never properly recorded his ownership?

Answer: Small Entity Status only

MPEP 324 VII. WHEN OWNERSHIP NEED NOT BE ESTABLISHED

Examples of situations where ownership need not be established under 37 CFR 3.73(b) are when the assignee:

signs a request for a continued prosecution application under 37 CFR 1.53(d), where papers establishing

ownership under 37 CFR 3.73(b) were filed in the prior application and ownership has not changed (MPEP §

201.06(d)); signs a small entity statement (MPEP § 509.03); signs a statement of common ownership of two

inventions (MPEP § 706.02(l)(2)); signs a NASA or DOE property rights statement (MPEP § 151); signs an

affidavit under 37 CFR 1.131 where the inventor is unavailable (MPEP § 715.04); signs a certificate under

37 CFR 1.8 (MPEP § 512); or files a request for reexamination of a patent under 37 CFR 1.510 (MPEP § 2210).