35 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
18
Ending by 2030
Jan 2027
Next term end
21
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 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. 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 May 2032 · High confidence
Also notable
Ends Mar 2029 · High confidence
Also notable
Ends Jul 2034 · High confidence
Nanostructured Materials for Battery Applications
US 10,490,817
Cited by 168 later US patents, top 1% of utility patents granted in 2019 in our data. Protection runs to 2032.
Nanowire Structures Comprising Carbon
US 7,939,218
The most cited patent in this portfolio, cited by 297 later US patents, top 5% of utility patents granted in 2011 in our data. Protection runs to 2029.
Nanostructured Battery Active Materials and Methods of Producing Same
US 11,616,225
Cited by 11 later US patents, top 10% of utility patents granted in 2023 in our data. Protection runs to 2034.
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 26, 2026The maintenance fee for Catalyst Layer for Fuel Cell Membrane Electrode Assembly, Fuel Cell Membrane Electrode Assembly Using the Catalyst Layer, Fuel Cell, and Method for Producing the Catalyst Layer (US 9,040,208) comes due Nov 26, 2026. Unpaid by May 26, 2027, it lapses early.
- 2 fees due Jan 16 to 30, 2027 · next Jan 16
- 1 fee due Feb 15, 2027The maintenance fee for Manufacturing Apparatus And Method For Making Silicon Nanowires On Carbon Based Powders For Use In Batteries (US 11,728,477) comes due Feb 15, 2027. Unpaid by Aug 16, 2027, it lapses early.
- 1 fee due May 26, 2027The maintenance fee for Nanostructured Materials for Battery Applications (US 10,490,817) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
- 1 fee due Oct 23, 2027The maintenance fee for Nanostructured Battery Active Materials and Methods of Producing Same (US 11,967,707) comes due Oct 23, 2027. Unpaid by Apr 24, 2028, it lapses early.
Recent changes
- 3 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 21 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Nanostructured Battery Active Materials and Methods of Producing Same | 5 in force | to Oct 2035 |
| Nanostructured Materials for Battery Applications | 5 in force | to May 2032 |
| Nanowire Structures Comprising Carbon | 4 in force | to Mar 2029 |
| Silicon Nanostructure Active Materials for Lithium Ion Batteries and Processes, Compositions, Components and Devices Related Thereto | 3 in force | to Oct 2032 |
| Methods for Nanowire Alignment and Deposition | 2 in force | to Mar 2029 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US RE45,703 | Nanostructured Catalyst Supports In force · Low confidence | In force | Low confidence | |
| US RE46,921 | Nanostructured Catalyst Supports In force (reinstated) · Low confidence | In force (reinstated) | Low confidence | |
| US 7,560,366 | Nanowire Horizontal Growth and Substrate Removal In force · High confidence | In force | High confidence | |
| US 7,741,197 | Systems and Methods for Harvesting and Reducing Contamination in Nanowires In force · High confidence | In force | High confidence | |
| US 7,754,524 | Methods, Devices and Compositions for Depositing and Orienting Nanostructures In force · High confidence | In force | High confidence | |
| US 7,842,432 | Nanowire Structures Comprising Carbon In force · High confidence | In force | High confidence | |
| US 8,252,164 | Methods for Nanowire Alignment and Deposition In force · High confidence | In force | High confidence | |
| US 7,745,498 | Nanowire Dispersion Compositions and Uses Thereof In force · High confidence | In force | High confidence | |
| US 7,776,760 | Systems and Methods for Nanowire Growth In force · High confidence | In force | High confidence | |
| US 7,786,024 | Selective Processing of Semiconductor Nanowires by Polarized Visible Radiation In force · High confidence | In force | High confidence |
Also on record, not counted in the 35: 55 patents ended · 2 applications pending · 12 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.