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Maintenance fees coming due

Transmedics, Inc.

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.
PatentTitleHolderStatusFee dueLapses if unpaidExpiresConfidence
US 11,659,836Apparatus 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 forceNov 30, 2026Jun 1, 2027High confidence
US 9,055,740Systems 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 forceDec 16, 2026Jun 16, 2027High confidence
US 10,327,441Modulation 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 forceDec 25, 2026Jun 25, 2027Medium confidence
US 10,327,442Apparatus 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 forceDec 25, 2026Jun 25, 2027High confidence
US 10,327,443Systems 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 forceDec 25, 2026Jun 25, 2027Medium confidence
US 9,078,428Systems, 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 forceJan 14, 2027Jul 14, 2027High confidence
US 11,700,848Apparatus for Perfusion of an Excised Organ
In force
Fee due Jan 18, 2027
Lapses if unpaid Jul 19, 2027
 · High confidence
Transmedics, Inc.In forceJan 18, 2027Jul 19, 2027High confidence
US 10,420,338Apparatus 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 forceMar 24, 2027Sep 24, 2027High confidence
US 10,433,539Novel 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 forceApr 8, 2027Oct 8, 2027Medium confidence
US 11,785,939Apparatus 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 forceApr 17, 2027Oct 18, 2027Low 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.
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Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited