4 patents currently held
566 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.
20 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2026. from the record
Of the 566 now held by other companies, 182 name WSOU Investments LLC as their current owner, and 384 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
2
Ending by 2030
Dec 2026
Next term end
4
Patent families
When these terms end
Held patents by the year their term ends
notable patents
all others
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 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.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Dec 2026 · High confidence
Also notable
Ends Mar 2027 · High confidence
Also notable
Ends May 2034 · High confidence
Low Loss Tunable Ring Resonator Allpass Filter
US 7,333,691
Renewed at every maintenance window since the 2008 grant; no more fees are due before its term ends in 2026.
Direct Optical Image Projectors
US 7,440,158
Renewed at every maintenance window since the 2008 grant; no more fees are due before its term ends in 2027.
Holographic MEMS Operated Optical Projectors
US 9,778,477
Granted 2017 and renewed at every maintenance window due so far. Protection runs to 2034.
Formerly held, still cited
Notable
Ends Sep 2031 · High confidence
Cited by 202 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2031.
now held by WSOU Investments, LLC
Also notable
Ends Jul 2029 · High confidence
Cited by 80 later US patents, top 10% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
now held by WSOU Investments, LLC
Also notable
Ends Mar 2027 · High confidence
Cited by 109 later US patents, top 10% of utility patents granted in 2009 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.
now held by Lyten, Inc.
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 42 terms have ended since Aug 16, 2026
What they patent
The 1 largest of its 4 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Holographic MEMS Operated Optical Projectors | 1 in force | to May 2034 |
Patents held now
Soonest term end first.
Showing 1 to 4 of 4
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,333,691 | Low Loss Tunable Ring Resonator Allpass Filter In force · High confidence | In force | High confidence | |
| US 7,440,158 | Direct Optical Image Projectors In force · High confidence | In force | High confidence | |
| US 8,588,852 | Method and Apparatus for Controlling a Phased Deployment of a Base Station Using an Operational State of a Vehicle held by Alcatel Lucent In force · High confidence | In force | High confidence | |
| US 9,778,477 | Holographic MEMS Operated Optical Projectors In force · High confidence | In force | High confidence |
Also on record, not counted in the 4: 566 patents in force now held by others · 2,981 patents ended · 8 applications pending · 1,546 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.