0 patents currently held, every record listed here
9 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.
This portfolio holds none of the 9 US patents in force on its record. from the record
Of the 9 now held by other companies, 9 name Chugai Seiyaku Kabushiki Kaisha as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
none
Next term end
When these terms end
Each bar runs from grant to computed term end. 2012 to 2032.
US 8,192,740
Pharmaceutical Composition Comprising ANTI-GRP78 Antibody as Active Ingredient
Feb 27, 2028
US 8,946,385
Chimeric Fc-gamma Receptor and Method for Determination of ADCC Activity by Using the Receptor
Sep 4, 2030
20162020202420282032
Every computed term in this portfolio is shown above.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
None of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Jan 2031 · High confidence
The most cited patent in this portfolio, cited by 89 later US patents, top 5% of utility patents granted in 2015 in our data. Protection runs to 2031.
now held by Chugai Seiyaku Kabushiki Kaisha
Also notable
Ends Sep 2030 · High confidence
Cited by 24 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2030.
now held by Chugai Seiyaku Kabushiki Kaisha
Also notable
Ends Apr 2030 · High confidence
Cited by 23 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
now held by Chugai Seiyaku Kabushiki Kaisha
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 term has ended since Aug 17, 2026
Patents held now
Soonest term end first.
Also on record: 9 patents in force now held by others · 5 patents ended · 9 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.
1 terminal disclaimer is on file with no resolved reference. No cap is applied and none is guessed