Maintenance fees coming due
22 maintenance fees come due in the 12 months from Nov 15, 2026, the next on Dec 13, 2026. Unpaid by Jun 14, 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 11,674,873 | Differential viscometer with solvent compressibility correction In force Fee due Dec 13, 2026 Lapses if unpaid Jun 14, 2027 · High confidence | Wyatt Technology, LLC | In force | Dec 13, 2026 | Jun 14, 2027 | High confidence | |
| US 10,330,638 | Method and apparatus to characterize pressurized liquid sample In force Fee due Dec 25, 2026 Lapses if unpaid Jun 25, 2027 · High confidence | Wyatt Technology, LLC | In force | Dec 25, 2026 | Jun 25, 2027 | High confidence | |
| US 11,686,678 | Optical flow cell assembly incorporating a replaceable transparent flow cell In force Fee due Dec 27, 2026 Lapses if unpaid Jun 28, 2027 · High confidence | Wyatt Technology, LLC | In force | Dec 27, 2026 | Jun 28, 2027 | High confidence | |
| US 11,708,551 | Temperature Uniformity and Suppressing Well Plate Warping in High Throughput Measurements In force Fee due Jan 25, 2027 Lapses if unpaid Jul 26, 2027 · High confidence | Wyatt Technology, LLC | In force | Jan 25, 2027 | Jul 26, 2027 | High confidence | |
| US 11,714,064 | Apparatus to measure electrophoretic mobility of a flowing sample In force Fee due Feb 1, 2027 Lapses if unpaid Aug 2, 2027 · High confidence | Wyatt Technology, LLC | In force | Feb 1, 2027 | Aug 2, 2027 | High confidence | |
| US 11,719,631 | Measuring Light Scattering of a Sample In force Fee due Feb 8, 2027 Lapses if unpaid Aug 9, 2027 · High confidence | Wyatt Technology, LLC | In force | Feb 8, 2027 | Aug 9, 2027 | High confidence | |
| US 10,408,716 | Method and Apparatus to Measure Multiple Signals from a Liquid Sample In force Fee due Mar 10, 2027 Lapses if unpaid Sep 10, 2027 · High confidence | Wyatt Technology, LLC | In force | Mar 10, 2027 | Sep 10, 2027 | High confidence | |
| US 10,422,768 | Method and apparatus to measure electrophoretic mobility of a flowing sample In force Fee due Mar 24, 2027 Lapses if unpaid Sep 24, 2027 · High confidence | Wyatt Technology, LLC | In force | Mar 24, 2027 | Sep 24, 2027 | High confidence | |
| US 11,768,185 | Analyzing Data Collected by Analytical Instruments In force Fee due Mar 26, 2027 Lapses if unpaid Sep 27, 2027 · High confidence | Wyatt Technology, LLC | In force | Mar 26, 2027 | Sep 27, 2027 | High confidence | |
| US 9,146,192 | Integrated light scattering and ultraviolet absorption measurement system In force Fee due Mar 29, 2027 Lapses if unpaid Sep 29, 2027 · High confidence | Wyatt Technology, LLC | In force | Mar 29, 2027 | Sep 29, 2027 | High confidence | |
| 12 more maintenance fees coming due in the 12 months from Nov 15, 2026 · Pro | |||||||
10 of 22 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.