Three patents currently held, every record listed here
2 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.
1 more record may belong here and awaits a decision; it is not counted.
The next term ends in Feb 2027. from the record
Of the 2 now held by other companies, 2 name Quantum Materials Group Inc. as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Feb 2027
Next term end
3
Patent families
When these terms end
Each bar runs from grant to computed term end. 2010 to 2040.
US 7,833,506
Process for the Synthesis of Nanosize Metal-Containing Nanoparticles and Nanoparticle Dispersions
Nov 8, 2027
20162022202820342040
2 pending applications: term is not computable until grant.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Feb 2027 · High confidence
Also notable
Ends Aug 2033 · High confidence
Also notable
Ends Feb 2040 · High confidence
Low Dielectric Loss Composite Material
US 7,648,758
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2027. A terminal disclaimer caps this term to an earlier patent's.
Woven Fabric
US D826,577
Granted 2018. Computed term ends 2033.
Synthetic Leather Fabrics
US 12,209,360
Granted 2025. Too new for citation comparison; protection runs to 2040.
Formerly held, still cited
Notable
Ends Nov 2032 · High confidence
Granted 2017 and renewed at every maintenance window due so far. Protection runs to 2032.
now held by Quantum Materials Group Inc.
Also notable
Ends Nov 2027 · High confidence
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2027.
now held by Quantum Materials Group Inc.
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 term has ended since Aug 16, 2026
What they patent
The 1 largest of its 3 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Synthetic Leather Fabrics | 1 in force | to Feb 2040 |
Patents held now
Soonest term end first.
Showing 1 to 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,648,758 | Low Dielectric Loss Composite Material In force · High confidence | In force | High confidence | |
| US D826,577 | Woven Fabric In force · High confidence | In force | High confidence | |
| US 12,209,360 | Synthetic Leather Fabrics In force · High confidence | In force | High confidence |
Also on record, not counted in the 3: 2 patents in force now held by others · 19 patents ended · 2 applications pending · 5 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.
2 computed term dates come from a chain with an unresolved parent. A continuity parent has not yet been fetched from USPTO's records. The term is dated from this application's own claim; no earlier date is assumed until the parent is resolved.