Maintenance fees coming due
17 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Nov 30, 2026. Unpaid by Jun 1, 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 11,659,836 | Apparatus for Testing, Assessment, and Maintenance of Harvested Hearts for Transplanting In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 · High confidence | Transmedics, Inc. | In force | Nov 30, 2026 | Jun 1, 2027 | High confidence | |
| US 9,055,740 | Systems and methods for ex-vivo organ care In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 · High confidence | Transmedics, Inc. | In force | Dec 16, 2026 | Jun 16, 2027 | High confidence | |
| US 10,327,441 | Modulation of Calcium Ion Homeostasis in Harvested Transplantable Hearts In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · Medium confidence | Transmedics, Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | Medium confidence | |
| US 10,327,442 | Apparatus for Maintenance of Harvested Hearts for Transplanting In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Transmedics, Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 10,327,443 | Systems for Monitoring and Applying Electrical Currents in an Organ Perfusion System In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · Medium confidence | Transmedics, Inc. | In force | Dec 25, 2026 | Jun 25, 2027 | Medium confidence | |
| US 9,078,428 | Systems, Methods, Compositions and Solutions for Perfusing an Organ In force Fee due Jan 14, 2027 Lapses if unpaid Jul 14, 2027 · High confidence | Transmedics, Inc. | In force | Jan 14, 2027 | Jul 14, 2027 | High confidence | |
| US 11,700,848 | Apparatus for Perfusion of an Excised Organ In force Fee due Jan 18, 2027 Lapses if unpaid Jul 19, 2027 · High confidence | Transmedics, Inc. | In force | Jan 18, 2027 | Jul 19, 2027 | High confidence | |
| US 10,420,338 | Apparatus for Testing, Assessment, and Maintenance of Harvested Hearts for Transplanting In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 · High confidence | Transmedics, Inc. | In force | Mar 24, 2027 | Sep 24, 2027 | High confidence | |
| US 10,433,539 | Novel Composition and Solution with Controlled Calcium Ion Level, and Related Method and Use for Reperfusion In force Fee due Apr 8, 2027 Lapses if unpaid Oct 8, 2027 · Medium confidence | Transmedics, Inc. | In force | Apr 8, 2027 | Oct 8, 2027 | Medium confidence | |
| US 11,785,939 | Apparatus and Method for Ex Vivo Lung Ventilation with a Varying Exterior Pressure In force Fee due Apr 17, 2027 Lapses if unpaid Oct 18, 2027 · Low confidence | Transmedics, Inc. | In force | Apr 17, 2027 | Oct 18, 2027 | Low confidence | |
| 7 more maintenance fees coming due in the 12 months from Nov 15, 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.