2 patents currently held
341 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 Oct 2027. from the record
Of the 341 now held by other companies, 340 name Analog Devices International Unlimited Company as their current owner, and 1 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Oct 2027
Next term end
2
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
Only 2 of the currently held patents qualify as notable.
Notable
Ends Oct 2027 · High confidence
Also notable
Ends Sep 2038 · High confidence
Bidirectional Power Converters
US 8,593,115
The largest patent family in this portfolio, 27 related applications, renewed at 3 of 3 maintenance windows. Protection runs to 2027. A terminal disclaimer caps this term to an earlier patent's.
Chopper Amplifiers with High Pass Filter for Suppressing Chopping Ripple
US 10,673,389
Granted 2020. Computed term ends 2038.
Formerly held, still cited
Notable
Ends Jul 2029 · High confidence
Cited by 33 later US patents, top 25% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
now held by Analog Devices International Unlimited Company
Also notable
Ends Dec 2032 · High confidence
Cited by 26 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
now held by Analog Devices International Unlimited Company
Also notable
Ends Jul 2032 · High confidence
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2032.
now held by Analog Devices International Unlimited Company
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 14 terms have ended since Aug 16, 2026
What they patent
The 1 largest of its 2 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Bidirectional Power Converters | 1 in force | to Oct 2027 |
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,593,115 | Bidirectional Power Converters In force · High confidence | In force | High confidence | |
| US 10,673,389 | Chopper Amplifiers with High Pass Filter for Suppressing Chopping Ripple In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 341 patents in force now held by others · 237 patents ended · 2 applications pending · 40 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 patents carry no fee events. That is a gap in the record, not evidence of lapse, so status falls back to the computed term