125 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
16
Ending by 2030
Dec 2026
Next term end
70
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 May 2038 · High confidence
Also notable
Ends Oct 2039 · High confidence
Also notable
Ends Dec 2027 · High confidence
Capacitor with Multiple Elements for Multiple Replacement Applications
US 11,183,338
Cited by 88 later US patents, top 1% of utility patents granted in 2021 in our data. Protection runs to 2038. A terminal disclaimer caps this term to an earlier patent's.
Capacitor
US D1,045,798
Cited by 16 later US patents, top 5% of design patents granted in 2024 in our data. Protection runs to 2039.
Electrolytic Capacitor
US 9,424,995
Cited by 132 later US patents, top 5% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2027.
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 26, 2026The maintenance fee for Solid state control system (US 9,038,405) comes due Nov 26, 2026. Unpaid by May 26, 2027, it lapses early.
- 2 fees due Dec 18 to 30, 2026 · next Dec 18
- 2 fees due Jan 18 to 30, 2027 · next Jan 18
- 3 fees due Feb 6 to 13, 2027 · next Feb 6
- 3 fees due Mar 10 to 22, 2027 · next Mar 10
- 1 fee due Apr 17, 2027The maintenance fee for Sink Drain Pipe With and Without Overflow Ports (US 11,788,266) comes due Apr 17, 2027. Unpaid by Oct 18, 2027, it lapses early.
- 5 fees due Jun 3 to 22, 2027 · next Jun 3
- 1 fee due Aug 6, 2027The maintenance fee for Field-Assembled Air Conveyance Apparatus, Systems and Methods (US 11,892,190) comes due Aug 6, 2027. Unpaid by Feb 7, 2028, it lapses early.
- 1 fee due Sep 10, 2027The maintenance fee for Capacitor with Multiple Elements for Multiple Replacement Applications (US 10,586,655) comes due Sep 10, 2027. Unpaid by Mar 10, 2028, it lapses early.
- 2 fees due Oct 19 to 26, 2027 · next Oct 19
Recent changes
- 5 of the patents on this record were granted since Aug 17, 2026
- 4 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 70 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Capacitor | 10 in force | to Oct 2041 |
| One-Piece Float Switch Housing and Drain Line Assembly with Condensate Collection Pan | 8 in force | to Oct 2033 |
| Hard Start Kit for Multiple Replacement Applications | 5 in force | to Mar 2041 |
| Capacitor with Multiple Elements for Multiple Replacement Applications (2018) | 5 in force | to May 2038 |
| Capacitor with Multiple Elements for Multiple Replacement Applications (2019) | 4 in force | to Jul 2039 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,478,794 | Apparatus and Methods for Gripping an Elongated Item In force · High confidence | In force | High confidence | |
| US 7,619,420 | Capacitance Measurement Device In force · High confidence | In force | High confidence | |
| US 7,618,067 | Welded Drain Spout In force · High confidence | In force | High confidence | |
| US 9,424,995 | Electrolytic Capacitor In force · High confidence | In force | High confidence | |
| US 7,673,646 | Pan with Integrated Egg-Shaped Supports In force · High confidence | In force | High confidence | |
| US 7,710,283 | Fluid-Level Sensing Device with Encapsulated Micro Switch In force · High confidence | In force | High confidence | |
| US 7,938,288 | Universal Drain Pan In force · High confidence | In force | High confidence | |
| US 8,266,740 | Method and Apparatus for Cleaning a Conduit In force · High confidence | In force | High confidence | |
| US 8,307,469 | Removable Floor Sink Drain Lock In force · High confidence | In force | High confidence | |
| US 7,744,395 | Quick-Disconnect Waterproof Connector In force · High confidence | In force | High confidence |
Also on record, not counted in the 125: 84 patents ended · 14 applications pending · 13 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.