Tsi Incorporated
4 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.
Recorded under 4 name spellings.
7
Ending by 2030
Jul 2027
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.
- 1 fee due Mar 17, 2027The maintenance fee for Seed sensor with lightpipe photodetect assembly (US 10,412,880) comes due Mar 17, 2027. Unpaid by Sep 17, 2027, it lapses early.
- 2 fees due Jun 29 to 30, 2027 · next Jun 29
- 2 fees due Jul 16 to 23, 2027 · next Jul 16
- 2 fees due Sep 5 to 19, 2027 · next Sep 5
- 1 fee due Oct 7, 2027The maintenance fee for Microwave Moisture Meter and Sensor (US 10,613,039) comes due Oct 7, 2027. Unpaid by Apr 7, 2028, it lapses early.
- 1 fee due Nov 10, 2027The maintenance fee for System and method for converting optical diameters of aerosol particles to mobility and aerodynamic diameters (US 9,335,244) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 3 terms have 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 7,812,306 | Instruments for measuring nanoparticle exposure In force · From the USPTO record | In force | From the USPTO record | |
| US 8,534,116 | Size segregated aerosol mass concentration measurement with inlet conditioners and multiple detectors In force · From the USPTO record | In force | From the USPTO record | |
| US 8,047,055 | Size segregated aerosol mass concentration measurement with inlet conditioners and multiple detectors In force · From the USPTO record | In force | From the USPTO record | |
| US 7,796,727 | Aerosol charge conditioner In force · From the USPTO record | In force | From the USPTO record | |
| US 7,932,490 | Size segregated aerosol mass concentration measurement device In force · From the USPTO record | In force | From the USPTO record | |
| US 8,192,523 | Device and method for separating and increasing the concentration of charged particles in a sampled aerosol In force · From the USPTO record | In force | From the USPTO record | |
| US 8,276,587 | Automated qualitative mask fit tester In force · From the USPTO record | In force | From the USPTO record | |
| US 8,292,990 | Nebulizer waste pressure reducer for HPLC systems In force · From the USPTO record | In force | From the USPTO record | |
| US 8,312,761 | Respirator test accessory In force · From the USPTO record | In force | From the USPTO record | |
| US 10,866,224 | System and apparatus for using a wireless smart device to perform field calculations In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 63: 4 patents in force now held by others · 19 lapsed for an unpaid fee · 82 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.
4 pending · 2 no status recorded