Maintenance fees coming due

Heartflow, Inc.

93 maintenance fees come due in the 12 months from Nov 14, 2026, the next on Nov 23, 2026. Unpaid by May 24, 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 11,653,833	System and Methods for Estimation of Blood Flow Characteristics Using Reduced Order Model and Machine Learning Heartflow, Inc. In force Fee due Nov 23, 2026 Lapses if unpaid May 24, 2027 Term ends Jul 3, 2038 · High confidence	Heartflow, Inc.	In force	Nov 23, 2026	May 24, 2027	Term ends Jul 3, 2038	High confidence
US 9,042,613	Method and System for Determining Treatments by Modifying Patient-Specific Geometrical Models Heartflow, Inc. In force Fee due Nov 26, 2026 Lapses if unpaid May 26, 2027 Term ends May 21, 2033 · High confidence	Heartflow, Inc.	In force	Nov 26, 2026	May 26, 2027	Term ends May 21, 2033	High confidence
US 10,304,569	Systems and Methods for Associating Medical Images with a Patient Heartflow, Inc. In force Fee due Nov 28, 2026 Lapses if unpaid May 28, 2027 Term ends Dec 2, 2036 · High confidence	Heartflow, Inc.	In force	Nov 28, 2026	May 28, 2027	Term ends Dec 2, 2036	High confidence
US 11,660,143	Systems and Methods for Diagnosis and Assessment of Cardiovascular Disease by Comparing Arterial Supply Capacity to End-Organ Demand Heartflow, Inc. In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Ends no later than Oct 28, 2036 · Medium confidence	Heartflow, Inc.	In force	Nov 30, 2026	Jun 1, 2027	Ends no later than Oct 28, 2036	Medium confidence
US 11,663,715	Systems and Methods for Predicting Location, Onset, And/Or Change of Coronary Lesions Heartflow, Inc. In force Fee due Nov 30, 2026 Lapses if unpaid Jun 1, 2027 Term ends Mar 22, 2037 · High confidence	Heartflow, Inc.	In force	Nov 30, 2026	Jun 1, 2027	Term ends Mar 22, 2037	High confidence
US 10,307,131	Systems and Methods for Assessing the Severity of Plaque And/Or Stenotic Lesions Using Contrast Distribution Predictions and Measurements Heartflow, Inc. In force Fee due Dec 4, 2026 Lapses if unpaid Jun 4, 2027 Term ends Jul 14, 2036 · High confidence	Heartflow, Inc.	In force	Dec 4, 2026	Jun 4, 2027	Term ends Jul 14, 2036	High confidence
US 10,314,654	Systems and Methods for Simulation of Hemodialysis Access and Optimization Heartflow, Inc. In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Jan 13, 2035 · High confidence	Heartflow, Inc.	In force	Dec 11, 2026	Jun 11, 2027	Term ends Jan 13, 2035	High confidence
US 10,314,655	Systems and Methods for Providing Personalized Estimates of Bioheat Transfer Heartflow, Inc. In force Fee due Dec 11, 2026 Lapses if unpaid Jun 11, 2027 Term ends Apr 1, 2036 · High confidence	Heartflow, Inc.	In force	Dec 11, 2026	Jun 11, 2027	Term ends Apr 1, 2036	High confidence
US 9,058,692	Systems and Methods for Image-Based Object Modeling Using Multiple Image Acquisitions or Reconstructions Heartflow, Inc. In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends Apr 16, 2034 · High confidence	Heartflow, Inc.	In force	Dec 16, 2026	Jun 16, 2027	Term ends Apr 16, 2034	High confidence
US 10,321,958	Method and System for Image Processing to Determine Patient-Specific Blood Flow Characteristics Heartflow, Inc. In force Fee due Dec 18, 2026 Lapses if unpaid Jun 21, 2027 Term ends Jan 25, 2031 · High confidence	Heartflow, Inc.	In force	Dec 18, 2026	Jun 21, 2027	Term ends Jan 25, 2031	High confidence
83 more maintenance fees coming due in the 12 months from Nov 14, 2026 · Pro

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