421 patents currently held
13 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.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
33
Ending by 2030
Dec 2026
Next term end
406
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Jun 2029 · High confidence
Also notable
Ends Sep 2028 · High confidence
Also notable
Ends Jul 2027 · High confidence
Mass Flow Controller
US 7,881,829
Cited by 41 later US patents, top 25% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
Flow Rate Ratio Control Device
US 8,019,481
Cited by 40 later US patents, top 25% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Microchip Testing Device
US 7,688,449
The largest patent family in this portfolio, 6 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2027.
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 Nov 21, 2026The maintenance fee for Electric Motor Test System (US 10,295,437) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
- 8 fees due Dec 4 to 27, 2026 · next Dec 4
- 12 fees due Jan 2 to 25, 2027 · next Jan 2
- 10 fees due Feb 8 to 27, 2027 · next Feb 8
- 6 fees due Mar 10 to 22, 2027 · next Mar 10
- 8 fees due Apr 1 to 27, 2027 · next Apr 1
- 3 fees due May 19, 2027
- 6 fees due Jun 10 to 30, 2027 · next Jun 10
- 10 fees due Jul 2 to 28, 2027 · next Jul 2
- 5 fees due Aug 4 to 20, 2027 · next Aug 4
- 3 fees due Sep 26 to 30, 2027 · next Sep 26
- 8 fees due Oct 2 to 30, 2027 · next Oct 2
- 2 fees due Nov 3 to 14, 2027 · next Nov 3
Recent changes
- Oct 13Assignment recorded on 2 patents: Eppendorf Himac Technologies Co., Ltd. to Horiba, Ltd. Recorded Oct 13, 2026, executed Sep 18, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76348, frame 252.
- 11 of the patents on this record were granted since Aug 17, 2026
- 5 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 406 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Radiation Detector and Radiation Detection Apparatus | 3 in force | to Jul 2038 |
| Absorption Spectrometric Analysis Microchip and Method | 3 in force | to Nov 2027 |
| Fluid Control Device, Fluid Control System, Storage Medium Storing a Program for Fluid Control Device, and Fluid Control Method | 2 in force | to Jul 2042 |
| Semiconductor Detector, Radiation Detector and Radiation Detection Apparatus | 2 in force | to Jun 2037 |
| High Conductance Valve for Fluids and Vapors | 2 in force | to Feb 2036 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,427,378 | Analysis Method and Apparatus for Sulfur Component Using Ultraviolet Fluorescence In force · High confidence | In force | High confidence | |
| US 7,717,002 | Exhaust Gas Dilution Device In force · High confidence | In force | High confidence | |
| US 7,802,482 | Diaphragm Attaching Structure of Electrostatic Capacity Type Pressure Gage held by Horiba Stec, Co., Ltd. In force · High confidence | In force | High confidence | |
| US 7,691,328 | Chip Using Method and Test Chip In force · High confidence | In force | High confidence | |
| US 8,755,679 | Liquid Material Vaporizer held by Horiba Stec, Co., Ltd. In force · High confidence | In force | High confidence | |
| US 7,537,566 | Bone Strength Measuring Instrument and Method In force · High confidence | In force | High confidence | |
| US 7,688,449 | Microchip Testing Device In force · High confidence | In force | High confidence | |
| US 7,636,162 | Microchip Testing Device In force · High confidence | In force | High confidence | |
| US 8,763,928 | Liquid Material Vaporizer held by Horiba Stec, Co., Ltd. In force · High confidence | In force | High confidence | |
| US 7,981,689 | Absorption Spectrometric Analysis Microchip and Method In force · High confidence | In force | High confidence |
Also on record, not counted in the 421: 13 patents in force now held by others · 292 patents ended · 140 applications pending · 142 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.