Maintenance fees coming due
9 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 27, 2026. Unpaid by Jun 28, 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 11,684,632 | Maribavir Isomers, Compositions, Methods of Making and Methods of Using In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 · High confidence | Shire Viropharma LLC | In force | Dec 27, 2026 | Jun 28, 2027 | High confidence | |
| US 11,787,796 | Plasma Kallikrein Inhibitors and Uses Thereof In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 · High confidence | Shire Human Genetic Therapies, Inc. | In force | Apr 17, 2027 | Oct 18, 2027 | High confidence | |
| US 10,485,813 | Maribavir Isomers, Compositions, Methods of Making and Methods of Using In force Fee due May 26, 2027 Lapses if unpaid Nov 26, 2027 · High confidence | Shire Viropharma LLC | In force | May 26, 2027 | Nov 26, 2027 | High confidence | |
| US 10,487,571 | Pass Through Access Opening Closure Device In force Fee due May 26, 2027 Lapses if unpaid Nov 26, 2027 · High confidence | Shire Valley Design, LLC | In force | May 26, 2027 | Nov 26, 2027 | High confidence | |
| US 9,206,235 | Peptide Linkers for Polypeptide Compositions and Methods for Using Same In force Fee due Jun 8, 2027 Lapses if unpaid Dec 8, 2027 · Medium confidence | Shire Human Genetic Therapies, Inc. | In force | Jun 8, 2027 | Dec 8, 2027 | Medium confidence | |
| US 10,512,657 | Bile Acid Recycling Inhibitors for Treatment of Pediatric Cholestatic Liver Diseases In force Fee due Jun 24, 2027 Lapses if unpaid Dec 27, 2027 · High confidence | Shire Human Genetic Therapies, Inc. | In force | Jun 24, 2027 | Dec 27, 2027 | High confidence | |
| US 10,568,941 | Treatment of Cognitive Impairment of Hunter Syndrome by Intrathecal Delivery of IDURONATE-2-Sulfatase In force Fee due Aug 25, 2027 Lapses if unpaid Feb 25, 2028 · High confidence | Shire Human Genetic Therapies, Inc. | In force | Aug 25, 2027 | Feb 25, 2028 | High confidence | |
| US 11,938,174 | Compositions and Methods Useful for the Treatment of Neuromyelitis Optica Spectrum Disorders In force Fee due Sep 26, 2027 Lapses if unpaid Mar 27, 2028 · High confidence | Shire Viropharma LLC | In force | Sep 26, 2027 | Mar 27, 2028 | High confidence | |
| US 11,969,703 | Antibody-Resin Coupling Apparatus and Methods In force Fee due Oct 30, 2027 Lapses if unpaid May 1, 2028 · High confidence | Takeda Pharmaceutical Company Limited | In force | Oct 30, 2027 | May 1, 2028 | High confidence |
9 of 9 patents shown. Soonest fee due date first, then patent number.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.