Maintenance fees coming due

Landauer, Inc.

9 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 16, 2026. Unpaid by Jun 16, 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 9,057,786	Algorithm for a Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Dec 16, 2026 Lapses if unpaid Jun 16, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Dec 16, 2026	Jun 16, 2027	Term ends May 31, 2033	High confidence
US 9,063,165	System for Motion and Activity Correlation with Dose for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Dec 23, 2026	Jun 23, 2027	Term ends May 31, 2033	High confidence
US 9,063,235	Algorithm for a Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Dec 23, 2026 Lapses if unpaid Jun 23, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Dec 23, 2026	Jun 23, 2027	Term ends May 31, 2033	High confidence
US 9,075,146	Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Jan 7, 2027 Lapses if unpaid Jul 7, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Jan 7, 2027	Jul 7, 2027	Term ends May 31, 2033	High confidence
US 9,103,920	Energy Harvester for Wireless, Motion and Position-Sensing, Integrating Radiation Sensor for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Feb 11, 2027 Lapses if unpaid Aug 11, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Feb 11, 2027	Aug 11, 2027	Term ends May 31, 2033	High confidence
US 9,115,989	System for Motion and Activity Correlation with Dose for Occupational and Environmental Dosimetry Landauer, Inc. In force Fee due Feb 25, 2027 Lapses if unpaid Aug 25, 2027 Term ends May 31, 2033 · High confidence	Landauer, Inc.	In force	Feb 25, 2027	Aug 25, 2027	Term ends May 31, 2033	High confidence
US 9,329,276	Optical System for Portable Osl Reader Landauer, Inc. In force Fee due Nov 3, 2027 Lapses if unpaid May 3, 2028 Term ends Aug 23, 2033 · High confidence	Landauer, Inc.	In force	Nov 3, 2027	May 3, 2028	Term ends Aug 23, 2033	High confidence
US 9,329,277	Osl Sensor Having a Reflective Backing Landauer, Inc. In force Fee due Nov 3, 2027 Lapses if unpaid May 3, 2028 Term ends Jun 21, 2033 · High confidence	Landauer, Inc.	In force	Nov 3, 2027	May 3, 2028	Term ends Jun 21, 2033	High confidence
US 9,329,278	Dosimeter with RFID Tag Landauer, Inc. In force Fee due Nov 3, 2027 Lapses if unpaid May 3, 2028 Term ends Apr 9, 2030 · Medium confidence	Landauer, Inc.	In force	Nov 3, 2027	May 3, 2028	Term ends Apr 9, 2030	Medium confidence

9 of 9 patents shown. Soonest fee due date first, then patent number.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.