186 patents currently held
7 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 Mar 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
30
Ending by 2030
Mar 2027
Next term end
138
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 2030 · High confidence
Also notable
Ends no later than Sep 2035 · Medium confidence
Also notable
Ends Apr 2035 · High confidence
Automatic Needle for Drug Pump
US 8,348,898
The most cited patent in this portfolio, cited by 241 later US patents, top 5% of utility patents granted in 2013 in our data. Protection runs to 2030.
Rotation Resistant Friction Adapter for Plunger Driver of Drug Delivery Device
US 10,086,145
Cited by 30 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2035. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
Injector Device
US D882,765
Cited by 50 later US patents, top 10% of design patents granted in 2020 in our data. Protection runs to 2035.
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.
- 3 fees due Nov 23 to 30, 2026 · next Nov 23
- 3 fees due Dec 13 to 20, 2026 · next Dec 13
- 2 fees due Jan 7 to 21, 2027 · next Jan 7
- 2 fees due Feb 15 to 25, 2027 · next Feb 15
- 4 fees due Mar 3 to 22, 2027 · next Mar 3
- 5 fees due Apr 3 to 17, 2027 · next Apr 3
- 2 fees due May 19 to 21, 2027 · next May 19
- 1 fee due Aug 16, 2027The maintenance fee for Automatic Injection Syringe Assembly with Integrated, Fillable Medicine Container and Method of Filling an Injection Syringe Assembly (US 9,259,536) comes due Aug 16, 2027. Unpaid by Feb 16, 2028, it lapses early.
- 4 fees due Sep 3 to 30, 2027 · next Sep 3
- 2 fees due Oct 2 to 9, 2027 · next Oct 2
- 3 fees due Nov 5 to 14, 2027 · next Nov 5
Recent changes
- 2 of the patents on this record were granted since Aug 17, 2026
What they patent
The 5 largest of its 138 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Automatic Needle for Drug Pump | 6 in force | to Sep 2030 |
| Rotation Resistant Friction Adapter for Plunger Driver of Drug Delivery Device | 5 in force | to Sep 2037 |
| Injector Device | 5 in force | to Apr 2035 |
| Pharmaceutical Syringe Piston | 5 in force | to Sep 2033 |
| Liquid Transfer Device | 4 in force | to Jan 2040 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,118,167 | Medical Container held by Daikyo Seiko, Ltd. and West Pharmaceutical Services, Inc. In force · High confidence | In force | High confidence | |
| US 8,282,609 | Safety Needle In force · High confidence | In force | High confidence | |
| US 7,749,202 | Dual Material Plunger Tip for Use with a Syringe In force · High confidence | In force | High confidence | |
| US D689,188 | Syringe Plunger Rod In force · High confidence | In force | High confidence | |
| US 7,559,919 | Needle Shield In force · High confidence | In force | High confidence | |
| US D693,002 | Hub for Medical Container In force · High confidence | In force | High confidence | |
| US 8,021,325 | Liquid Drug Medical Device held by West Pharma Services Il, Ltd. In force · High confidence | In force | High confidence | |
| US 8,016,809 | Liquid Drug Delivery Devices for Use with Syringes with Widened Distal Tips held by West Pharma Services Il, Ltd. In force · High confidence | In force | High confidence | |
| US 9,115,282 | Resealable Thermoplastic Elastomer Articles In force · High confidence | In force | High confidence | |
| US 9,468,726 | Syringe with Co-Molded Hub and Cannula In force · High confidence | In force | High confidence |
Also on record, not counted in the 186: 7 patents in force now held by others · 14 patents ended · 47 applications pending · 16 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.