Two patents currently held, every record listed here
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jul 2030. from the record
Of the 1 now held by other companies, 1 name Tokyo Electric Power Company Holdings Incorporated 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
Jul 2030
Next term end
2
Patent families
When these terms end
Each bar runs from grant to computed term end. 2014 to 2033.20182022202620302033
Every computed term in this portfolio is shown above.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
Only 2 of the currently held patents qualify as notable.
Notable
Ends Jul 2030 · High confidence
Also notable
Ends Aug 2032 · High confidence
Compressor and Refrigerating Machine
US 8,621,882
The most cited patent in this portfolio, cited by 98 later US patents, top 5% of utility patents granted in 2014 in our data. Protection runs to 2030.
Refrigerator
US 9,494,154
Granted 2016 and renewed at every maintenance window due so far. Protection runs to 2032.
Formerly held, still cited
Notable
Ends Jan 2033 · High confidence
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2033.
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.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Refrigerator | 1 in force | to Aug 2032 |
| Compressor and Refrigerating Machine | 1 in force | to Jul 2030 |
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,621,882 | Compressor and Refrigerating Machine held by Tokyo Electric Power Company Holdings, Incorporated, The Kansai Electric Power Co., Inc., Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Danish Technological Institute and Johnson Controls Denmark APS In force · High confidence | In force | High confidence | |
| US 9,494,154 | Refrigerator held by Tokyo Electric Power Company Holdings, Incorporated, The Kansai Electric Power Co., Inc., Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Danish Technological Institute and Johnson Controls Denmark APS In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 1 patent in force now held by others · 2 patents ended · 1 application 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.