37 CFR 42.15: Fees.

(a) On filing a petition for inter partes review of a patent, payment of the following fees are due:

(1) Inter Partes Review request fee—up to 20 claims: $23,750.00.

(2) Inter Partes Review Post-Institution fee—up to 20 claims: $28,125.00.

(3) In addition to the Inter Partes Review request fee, for requesting a review of each claim in excess of 20: $470.00.

(4) In addition to the Inter Partes Post-Institution request fee, for requesting a review of each claim in excess of 20: $940.00.

(b) On filing a petition for post-grant review or covered business method patent review of a patent, payment of the following fees are due:

(1) Post-Grant or Covered Business Method Patent Review request fee—up to 20 claims: $25,000.00.

(2) Post-Grant or Covered Business Method Patent Review Post-Institution fee—up to 20 claims: $34,375.00.

(3) In addition to the Post-Grant or Covered Business Method Patent Review request fee, for requesting a review of each claim in excess of 20: $595.00.

(4) In addition to the Post-Grant or Covered Business Method Patent Review Post-Institution fee, for requesting a review of each claim in excess of 20: $1,315.00.

(c) On the filing of a petition for a derivation proceeding, payment of the following fee is due:

(1) Derivation petition fee: $452.00.

(2) [Reserved]

(d) Any request requiring payment of a fee under this part, including a written request to make a settlement agreement available: $452.00.

(e) Fee for counsel who are not registered practitioners, and who are not seeking automatic recognition pursuant to § 42.10(c)(2), to appear pro hac vice before the Patent Trial and Appeal Board: $269.00.

(f) Fee for requesting a review of a Patent Trial and Appeal Board decision by the Director: $452.00.