96 patents currently held
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 Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
8
Ending by 2030
Jan 2027
Next term end
79
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 Apr 2037 · High confidence
Also notable
Ends Oct 2038 · High confidence
Also notable
Ends Jan 2035 · High confidence
Low Pressure Fuel and Air Charge Forming Device for a Combustion Engine
US 11,073,122
Cited by 28 later US patents, top 5% of utility patents granted in 2021 in our data. Protection runs to 2037.
Multi-Function Engine Control and Input System
US 11,300,090
Cited by 16 later US patents, top 10% of utility patents granted in 2022 in our data. Protection runs to 2038.
Fuel Injected Engine System
US 9,371,786
The most cited patent in this portfolio, cited by 46 later US patents, top 10% of utility patents granted in 2016 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.
- 1 fee due Nov 23, 2026The maintenance fee for Charge Forming Device with Throttle Valve (US 11,655,788) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 1 fee due Jan 16, 2027The maintenance fee for Solenoid Valve (US 10,352,471) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
- 1 fee due Mar 19, 2027The maintenance fee for Charge Forming Device with Tamper Resistant Adjustable Valve (US 11,761,403) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
- 3 fees due Apr 3 to 30, 2027 · next Apr 3
- 1 fee due Jun 22, 2027The maintenance fee for Level Sensor Mount (US 9,217,403) comes due Jun 22, 2027. Unpaid by Dec 22, 2027, it lapses early.
- 2 fees due Jul 30, 2027
- 2 fees due Aug 4 to 20, 2027 · next Aug 4
- 2 fees due Sep 5 to 12, 2027 · next Sep 5
Recent changes
- 1 term has ended since Aug 17, 2026
What they patent
The 5 largest of its 79 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Charge Forming Device with Throttle Valve | 3 in force | to Apr 2040 |
| Low Pressure Fuel and Air Charge Forming Device for a Combustion Engine | 3 in force | to Apr 2037 |
| Fuel Supply Device with Injector and Vapor Management | 2 in force | to Oct 2042 |
| Fuel and Air Charge Forming Device | 2 in force | to Jul 2042 |
| Fuel Injector Control Strategy for Intake Vacuum Based Low Pressure Fuel System | 2 in force | to Dec 2040 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,427,057 | Control Valve Assembly of a Carburetor and Method of Assembly In force · High confidence | In force | High confidence | |
| US 7,690,342 | Priming Circuit for a Fuel System In force · High confidence | In force | High confidence | |
| US 7,546,836 | Ignition Module for Use with a Light-Duty Internal Combustion Engine In force · High confidence | In force | High confidence | |
| US 7,735,471 | Controlling a Light-Duty Combustion Engine In force · High confidence | In force | High confidence | |
| US 7,717,403 | Accelerator Device for a Carburetor In force · High confidence | In force | High confidence | |
| US 7,827,970 | Vapor Separator In force · High confidence | In force | High confidence | |
| US 8,622,031 | System for Supplementary Fuel Supply In force · High confidence | In force | High confidence | |
| US 8,933,691 | Rotary Position Sensor In force · High confidence | In force | High confidence | |
| US 8,397,702 | Control Circuit for Capacitor Discharge Ignition System In force · High confidence | In force | High confidence | |
| US 9,022,011 | Engine Fuel Delivery Systems, Apparatus and Methods In force · High confidence | In force | High confidence |
Also on record, not counted in the 96: 1 patent in force now held by others · 10 patents ended · 1 application pending · 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.
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.