Maintenance fees coming due
31 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 19, 2026. Unpaid by May 19, 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 9,034,990 | Compatibilized Polypropylene Heterophasic Copolymer and Polylactic Acid Blends for Injection Molding Applications In force Fee due Nov 19, 2026 Lapses if unpaid May 19, 2027 · High confidence | Fina Technology, Inc. | In force | Nov 19, 2026 | May 19, 2027 | High confidence | |
| US 11,661,386 | Parallel Reactor System for Ethylbenzene Dehydrogenation In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Fina Technology, Inc. | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 11,661,496 | Additives to Remediate DVB Cross-Linking and Insoluble Polymer Formation in the Styrene Process In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Fina Technology, Inc. | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 9,045,630 | Epoxy Functional Polystyrene for Enhanced PLA Miscibility In force Fee due Dec 2, 2026 Lapses if unpaid Jun 2, 2027 · Medium confidence | Fina Technology, Inc. | In force | Dec 2, 2026 | Jun 2, 2027 | Medium confidence | |
| US 10,323,117 | Polyols Derived from Farnesene for Polyurethanes In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 · High confidence | Fina Technology, Inc. | In force | Dec 18, 2026 | Jun 21, 2027 | High confidence | |
| US 10,336,839 | Farnesene-Based Polymers and Liquid Optically Clear Adhesive Compositions Incorporating the Same In force Fee due Jan 2, 2027 Lapses if unpaid Jul 2, 2027 · High confidence | Fina Technology, Inc. | In force | Jan 2, 2027 | Jul 2, 2027 | High confidence | |
| US 9,079,982 | Methods of Making High Impact Polystyrene In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | Fina Technology, Inc. | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 9,090,000 | Injection Stretch Blow Molded Articles and Random Copolymers for Use Therein In force Fee due Jan 28, 2027 Lapses if unpaid Jul 28, 2027 · High confidence | Fina Technology, Inc. | In force | Jan 28, 2027 | Jul 28, 2027 | High confidence | |
| US 9,090,715 | Swell Index of Hips Using Additives In force Fee due Jan 28, 2027 Lapses if unpaid Jul 28, 2027 · High confidence | Fina Technology, Inc. | In force | Jan 28, 2027 | Jul 28, 2027 | High confidence | |
| US 10,369,552 | Method of Forming a Catalyst with an Ion-Modified Binder In force Fee due Feb 6, 2027 Lapses if unpaid Aug 6, 2027 · High confidence | Fina Technology, Inc. | In force | Feb 6, 2027 | Aug 6, 2027 | High confidence | |
| 21 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 31 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.