Maintenance fees coming due
17 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 28, 2026. Unpaid by May 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 10,301,634 | Regulatable Promoter In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 · High confidence | Lonza Ltd. | In force | Nov 28, 2026 | May 28, 2027 | High confidence | |
| US 11,739,066 | Method for Fluoroalkylation of Enamines In force Fee due Feb 28, 2027 Lapses if unpaid Aug 30, 2027 · High confidence | Arxada AG | In force | Feb 28, 2027 | Aug 30, 2027 | High confidence | |
| US 11,739,289 | Continuous Blade Impeller In force Fee due Feb 28, 2027 Lapses if unpaid Aug 30, 2027 · High confidence | Lonza Limited | In force | Feb 28, 2027 | Aug 30, 2027 | High confidence | |
| US 10,428,123 | Constitutive Promoter In force Fee due Apr 1, 2027 Lapses if unpaid Oct 1, 2027 · High confidence | Lonza Ltd. | In force | Apr 1, 2027 | Oct 1, 2027 | High confidence | |
| US 11,773,424 | Carbon-Source Regulated Protein Production in a Recombinant Host Cell In force Fee due Apr 3, 2027 Lapses if unpaid Oct 4, 2027 · High confidence | Lonza Ltd. | In force | Apr 3, 2027 | Oct 4, 2027 | High confidence | |
| US 9,150,870 | Constitutive Promoter In force Fee due Apr 6, 2027 Lapses if unpaid Oct 6, 2027 · High confidence | Lonza Ltd. | In force | Apr 6, 2027 | Oct 6, 2027 | High confidence | |
| US 10,436,338 | Rupture Disks for Bioreactors and Methods of Using Same In force Fee due Apr 8, 2027 Lapses if unpaid Oct 8, 2027 · High confidence | Lonza Ltd. | In force | Apr 8, 2027 | Oct 8, 2027 | High confidence | |
| US 11,781,116 | Mammalian Cells for Producing Adeno-Associated Viruses In force Fee due Apr 10, 2027 Lapses if unpaid Oct 12, 2027 · High confidence | Lonza Ltd. | In force | Apr 10, 2027 | Oct 12, 2027 | High confidence | |
| US 11,833,222 | CL And/Or CH1 Mutated Antibodies for Drug Conjugation In force Fee due Jun 5, 2027 Lapses if unpaid Dec 6, 2027 · High confidence | Lonza Ltd. | In force | Jun 5, 2027 | Dec 6, 2027 | High confidence | |
| US 11,852,564 | Device and Method for Leakage Testing of a Connection Between a Rubber Stopper and a Corresponding Drug Container In force Fee due Jun 26, 2027 Lapses if unpaid Dec 27, 2027 · High confidence | Lonza Ltd | In force | Jun 26, 2027 | Dec 27, 2027 | High confidence | |
| 7 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro | |||||||
10 of 17 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.