Two patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jul 2041. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jul 2041
Next term end
2
Patent families
When these terms end
Each bar runs from grant to computed term end. 2023 to 2044.202720312035203920432044
Every computed term in this portfolio is shown above.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Only 2 of the currently held patents qualify as notable.
Notable
Ends Jul 2041 · High confidence
Also notable
Ends Dec 2044 · High confidence
Polarization Dependent Loss Measurement
US 11,644,381
The most cited patent in this portfolio, cited by 5 later US patents, top 25% of utility patents granted in 2023 in our data. Protection runs to 2041.
Tunable Laser Having Low Intra-Cavity Chromatic Aberrations
US 12,695,272
Granted 2026. Too new for citation comparison; protection runs to 2044.
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,644,381 | Polarization Dependent Loss Measurement In force · High confidence | In force | High confidence | |
| US 12,695,272 | Tunable Laser Having Low Intra-Cavity Chromatic Aberrations In force · High confidence | In force | High confidence |
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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.