Li-Cor, Inc.
17 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6
Ending by 2030
Dec 2026
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 2 fees due Feb 8 to 25, 2027 · next Feb 8
- 1 fee due Mar 19, 2027The maintenance fee for Water Vapor Differential Minimization Systems and Methods for Gas Exchange Measurements of Aqueous or Water Saturated Samples (US 11,761,893) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
- 2 fees due May 24 to 26, 2027 · next May 24
- 1 fee due Jun 24, 2027The maintenance fee for Multiple Laser Optical Feedback Assisted Cavity Enhanced Absorption Spectroscopy Systems and Methods (US 10,514,299) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 1 fee due Jul 7, 2027The maintenance fee for Mode Matching Method for Absorption Spectroscopy Systems (US 10,527,492) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
- 1 fee due Aug 4, 2027The maintenance fee for Acoustic structural reflection interference mitigation systems, methods, and devices (US 10,551,406) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 1 fee due Oct 5, 2027The maintenance fee for Cavity Enhanced Laser Based Gas Analyzer Systems and Methods (US 9,304,080) comes due Oct 5, 2027. Unpaid by Apr 5, 2028, it lapses early.
Recent changes
- 1 term has ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,018,981 | Multi-Pass Optical Cell with Actuator for Actuating a Reflective Surface In force · High confidence | In force | High confidence | |
| US 8,508,874 | Process for Forming a Light Beam Path in a Dielectric Mirror In force · Medium confidence | In force | Medium confidence | |
| US 8,317,342 | Surface Preparation Method for Eliminating Optical Interference from Absorption Cavity Mirrors In force · Medium confidence | In force | Medium confidence | |
| US 8,154,714 | Gas Analyzer In force · High confidence | In force | High confidence | |
| US 7,953,558 | Method and Apparatus for Determining Gas Flux In force · Medium confidence | In force | Medium confidence | |
| US 8,610,072 | Gas Exchange System Flow Configuration In force · High confidence | In force | High confidence | |
| US 8,613,520 | Process of Forming a Light Beam Path in a Dielectric Mirror In force · High confidence | In force | High confidence | |
| US 9,482,653 | Gas Exchange System Flow Configuration In force · High confidence | In force | High confidence | |
| US 8,659,758 | Laser Based Cavity Enhanced Optical Absorption Gas Analyzer with Laser Feedback Optimization In force · High confidence | In force | High confidence | |
| US 8,910,506 | Gas Exchange System Flow Configuration In force · High confidence | In force | High confidence |
Also on record, not counted in the 32: 17 patents in force now held by others · 73 lapsed for an unpaid fee · 59 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
1 pending · 13 abandoned · 27 no status recorded