Maintenance fees coming due

Codexis, Inc.

72 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 14, 2026. Unpaid by May 14, 2027, that one lapses early.

A maintenance fee does not end a patent on its due date. It falls due at 3.5, 7.5 and 11.5 years from grant, and the patent lapses only if the fee is still unpaid at the end of the six month grace period that follows.

Patent	Title	Holder	Status	Fee due	Lapses if unpaid	Expires	Confidence
US 10,287,567	Polynucleotides Encoding Engineered Tyrosine Ammonia Lyase Variants Codexis, Inc. In force Fee due Nov 14, 2026 Lapses if unpaid May 14, 2027 Term ends May 8, 2035 · High confidence	Codexis, Inc.	In force	Nov 14, 2026	May 14, 2027	Term ends May 8, 2035	High confidence
US 10,294,468	Engineered Phenylalanine Ammonia Lyase Polypeptides Codexis, Inc. In force Fee due Nov 21, 2026 Lapses if unpaid May 21, 2027 Term ends Apr 17, 2034 · High confidence	Codexis, Inc.	In force	Nov 21, 2026	May 21, 2027	Term ends Apr 17, 2034	High confidence
US 10,308,966	Nucleic Acids Encoding Engineered Imine Reductases Codexis, Inc. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends May 9, 2033 · High confidence	Codexis, Inc.	In force	Dec 4, 2026	Jun 4, 2027	Term ends May 9, 2033	High confidence
US 10,323,233	Transaminase Polypeptides Codexis Inc. In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jan 8, 2030 · High confidence	Codexis Inc.	In force	Dec 18, 2026	Jun 21, 2027	Term ends Jan 8, 2030	High confidence
US 10,323,234	Transaminase Polypeptides Codexis Inc. In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jan 8, 2030 · High confidence	Codexis Inc.	In force	Dec 18, 2026	Jun 21, 2027	Term ends Jan 8, 2030	High confidence
US 10,329,540	Ketoreductase Polypeptides for the Production of Azetidinone Codexis, Inc. In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 Term ends Oct 1, 2028 · High confidence	Codexis, Inc.	In force	Dec 25, 2026	Jun 25, 2027	Term ends Oct 1, 2028	High confidence
US 9,068,235	Fungal Strains Codexis, Inc. In force Fee due Dec 30, 2026 Lapses if unpaid Jun 30, 2027 Term ends Nov 1, 2031 · High confidence	Codexis, Inc.	In force	Dec 30, 2026	Jun 30, 2027	Term ends Nov 1, 2031	High confidence
US 11,701,411	Compositions and Methods for Treating Gluten Intolerance and Disorders Arising Therefrom Codexis, Inc. In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 Term ends Jun 16, 2035 · High confidence	Codexis, Inc.	In force	Jan 18, 2027	Jul 19, 2027	Term ends Jun 16, 2035	High confidence
US 10,358,631	Ketoreductase Polypeptides for the Preparation of Phenylephrine Codexis, Inc. In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Aug 19, 2030 · High confidence	Codexis, Inc.	In force	Jan 23, 2027	Jul 23, 2027	Term ends Aug 19, 2030	High confidence
US 10,358,639	Engineered Phenylalanine Ammonia Lyase Polypeptides Codexis, Inc. In force Fee due Jan 23, 2027 Lapses if unpaid Jul 23, 2027 Term ends Apr 17, 2034 · High confidence	Codexis, Inc.	In force	Jan 23, 2027	Jul 23, 2027	Term ends Apr 17, 2034	High confidence
62 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

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Pro members see every patent with a maintenance fee coming due: number, title, status, the due date, and the date it lapses if the fee goes unpaid through the grace period.

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