Maintenance fees coming due

Repligen Corporation

26 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Dec 2, 2026. Unpaid by Jun 2, 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 9,046,485	Interactive Variable Pathlength Device Repligen Corporation In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 Term ends Apr 10, 2028 · High confidence	Repligen Corporation	In force	Dec 2, 2026	Jun 2, 2027	Term ends Apr 10, 2028	High confidence
US 10,309,818	Fluid Monitoring Assembly with Flow Sensor Repligen Corporation In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends May 17, 2036 · High confidence	Repligen Corporation	In force	Dec 4, 2026	Jun 4, 2027	Term ends May 17, 2036	High confidence
US 11,667,672	Methods, Devices and Systems for 3-Stage Filtration Repligen Corporation In force Fee due Dec 6, 2026 Lapses if unpaid Jun 7, 2027 Term ends Jul 11, 2038 · High confidence	Repligen Corporation	In force	Dec 6, 2026	Jun 7, 2027	Term ends Jul 11, 2038	High confidence
US 9,050,547	Screen Filter Module for Alternating Flow Filtration Repligen Corporation In force Fee due Dec 9, 2026 Lapses if unpaid Jun 9, 2027 Term ends Aug 20, 2031 · High confidence	Repligen Corporation	In force	Dec 9, 2026	Jun 9, 2027	Term ends Aug 20, 2031	High confidence
US 11,673,083	Filtration System with Selective Flow Reversal Repligen Corporation In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 Term ends Apr 15, 2042 · High confidence	Repligen Corporation	In force	Dec 13, 2026	Jun 14, 2027	Term ends Apr 15, 2042	High confidence
US 11,680,239	Filter for Mammalian Cell Culture Perfusion and Clarification with Hydrophobic Hollow Fiber Repligen Corporation In force Fee due Dec 20, 2026 Lapses if unpaid Jun 21, 2027 Term ends Sep 14, 2041 · High confidence	Repligen Corporation	In force	Dec 20, 2026	Jun 21, 2027	Term ends Sep 14, 2041	High confidence
US 11,719,348	Encapsulated Valve System and Method of Use Repligen Corporation In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 Term ends May 15, 2029 · High confidence	Repligen Corporation	In force	Feb 8, 2027	Aug 9, 2027	Term ends May 15, 2029	High confidence
US 9,119,618	Surgical Drape Repligen Corporation In force Fee due Mar 1, 2027 Lapses if unpaid Sep 1, 2027 Term ends Nov 16, 2033 · High confidence	Repligen Corporation	In force	Mar 1, 2027	Sep 1, 2027	Term ends Nov 16, 2033	High confidence
US 10,407,223	Device and Draping Method for Facilitating Introduction of a Non-Sterile Container into a Sterile Environment Repligen Corporation In force Fee due Mar 10, 2027 Lapses if unpaid Sep 10, 2027 Term ends Mar 29, 2038 · High confidence	Repligen Corporation	In force	Mar 10, 2027	Sep 10, 2027	Term ends Mar 29, 2038	High confidence
US 11,754,191	Encapsulated System for Pressurized Fluid Processes Repligen Corporation In force Fee due Mar 12, 2027 Lapses if unpaid Sep 13, 2027 Term ends Dec 15, 2035 · High confidence	Repligen Corporation	In force	Mar 12, 2027	Sep 13, 2027	Term ends Dec 15, 2035	High confidence
16 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

10 of 26 patents shown. Soonest fee due date first, then patent number.

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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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.