9 patents currently held
347 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 Apr 2027. from the record
Of the 347 now held by other companies, 212 name Honeycomb Battery Company as their current owner, and 135 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
6
Ending by 2030
Apr 2027
Next term end
9
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 Sep 2033 · High confidence
Also notable
Ends Jul 2028 · High confidence
Also notable
Ends Apr 2027 · Medium confidence
Graphene-Enhanced Anode Particulates for Lithium Ion Batteries
US 9,558,860
Cited by 209 later US patents, top 1% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.
Nano Graphene Platelet-Based Composite Anode Compositions for Lithium Ion Batteries
US 7,745,047
The most cited patent in this portfolio, cited by 471 later US patents, top 1% of utility patents granted in 2010 in our data. Protection runs to 2028.
Device for the Continuous Electrochemical Deionisation with Integrated Membrane Unit
US 8,652,326
Renewed at every maintenance window since the 2014 grant; no more fees are due before its term ends in 2027.
Formerly held, still cited
Notable
Ends Jul 2038 · High confidence
Cited by 39 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2038. A terminal disclaimer caps this term to an earlier patent's.
now held by Honeycomb Battery Company
Also notable
Ends Apr 2038 · High confidence
Cited by 52 later US patents, top 5% of utility patents granted in 2020 in our data. Protection runs to 2038.
now held by Honeycomb Battery Company
Also notable
Ends Oct 2032 · High confidence
Cited by 82 later US patents, top 10% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
now held by Honeycomb Battery Company
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 Jan 28, 2027The maintenance fee for Process for producing nano graphene reinforced composite particles for lithium battery electrodes (US 9,093,693) comes due Jan 28, 2027. Unpaid by Jul 28, 2027, it lapses early.
Recent changes
- 2 of the patents on this record were granted since Aug 17, 2026
- 3 terms have ended since Aug 17, 2026
What they patent
The 3 largest of its 9 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Graphene-Enhanced Anode Particulates for Lithium Ion Batteries | 1 in force | to Sep 2033 |
| Nano Graphene Platelet-Based Composite Anode Compositions for Lithium Ion Batteries | 1 in force | to Jul 2028 |
| Device for the Continuous Electrochemical Deionisation with Integrated Membrane Unit | 1 in force | to Apr 2027 |
Patents held now
Soonest term end first.
Showing 1 to 9 of 9
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,652,326 | Device for the Continuous Electrochemical Deionisation with Integrated Membrane Unit In force · Medium confidence | In force | Medium confidence | |
| US 7,543,395 | Truck Height Measurement Pole In force · High confidence | In force | High confidence | |
| US 8,119,288 | Hybrid Anode Compositions for Lithium Ion Batteries held by Samsung Electronics Co., Ltd. In force · High confidence | In force | High confidence | |
| US 7,745,047 | Nano Graphene Platelet-Based Composite Anode Compositions for Lithium Ion Batteries held by Samsung Electronics Co., Ltd. In force · High confidence | In force | High confidence | |
| US 8,580,432 | Nano graphene reinforced nanocomposite particles for lithium battery electrodes held by Samsung Electronics Co., Ltd. In force · High confidence | In force | High confidence | |
| US 9,093,693 | Process for producing nano graphene reinforced composite particles for lithium battery electrodes held by Samsung Electronics Co., Ltd. In force · High confidence | In force | High confidence | |
| US 9,558,860 | Graphene-Enhanced Anode Particulates for Lithium Ion Batteries held by Samsung Electronics Co., Ltd. In force · High confidence | In force | High confidence | |
| US 9,722,262 | Fuel Cell Stack for Preventing Deterioration of End Cell In force · High confidence | In force | High confidence | |
| US 9,940,046 | Semiconductor Memory Device with Operation Environment Information Storing Circuit and Command Storing Function In force · High confidence | In force | High confidence |
Also on record, not counted in the 9: 347 patents in force now held by others · 107 patents ended · 16 applications pending · 75 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.