146 patents currently held
4 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 Sep 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
22
Ending by 2030
Sep 2027
Next term end
103
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 Dec 2040 · High confidence
Also notable
Ends Jun 2039 · High confidence
Also notable
Ends Nov 2038 · High confidence
System for Monitoring Backflow Preventer Condition
US 11,427,992
Cited by 29 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2040.
Plumbing Control Device
US 11,543,278
Cited by 11 later US patents, top 10% of utility patents granted in 2023 in our data. Protection runs to 2039.
Uv Lamp and Anti-Scale Water Treatment Water Heater Apparatus with Sanitation Loop
US 11,396,467
Cited by 5 later US patents, top 25% of utility patents granted in 2022 in our data. Protection runs to 2038. A terminal disclaimer caps this term to an earlier patent's.
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 16, 2026The maintenance fee for Differential Pressure Sensor with Magnetic Dial (US 11,650,118) comes due Nov 16, 2026. Unpaid by May 17, 2027, it lapses early.
- 2 fees due Dec 13, 2026
- 2 fees due Jan 18, 2027
- 5 fees due Feb 6 to 28, 2027 · next Feb 6
- 1 fee due Mar 5, 2027The maintenance fee for Controller for a Manifold Assembly in a Water Filter System (US 11,745,127) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.
- 3 fees due Apr 3 to 24, 2027 · next Apr 3
- 3 fees due May 5 to 21, 2027 · next May 5
- 2 fees due Jun 5 to 26, 2027 · next Jun 5
- 1 fee due Aug 6, 2027The maintenance fee for Method for Coating a Valve Assembly with a Two Layer Antimicrobial Anticorrosion Coating (US 11,892,117) comes due Aug 6, 2027. Unpaid by Feb 7, 2028, it lapses early.
- 2 fees due Sep 26 to 29, 2027 · next Sep 26
Recent changes
- Oct 14Assignment recorded on US 12,710,103: Yurkiw, Patrick Jay and 1 other to Watts Regulator Co. Recorded Oct 14, 2026, executed Oct 13, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76374, frame 539.
- 7 of the patents on this record were granted since Aug 17, 2026
What they patent
The 5 largest of its 103 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Uv Lamp and Anti-Scale Water Treatment Water Heater Apparatus with Sanitation Loop | 7 in force | to Mar 2040 |
| Backflow Prevention Assembly with Telescoping Bias Assembly and Reversible Valve Member | 4 in force | to Aug 2041 |
| Flow Monitor | 4 in force | to Sep 2040 |
| Tankless Water Heater Isolation Valve Assembly | 3 in force | to Nov 2041 |
| Backflow Prevention System Test Cock with a Fluid Sensor | 3 in force | to Jul 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,550,084 | Reverse Osmosis Water Filtering System In force · High confidence | In force | High confidence | |
| US 7,913,926 | Thermostatic Mixing Valve In force · Medium confidence | In force | Medium confidence | |
| US D699,771 | Control Unit for Pipe Fusing In force · High confidence | In force | High confidence | |
| US 7,571,497 | Lavatory Carrier In force · High confidence | In force | High confidence | |
| US 7,967,523 | Trench Drain Assembly In force · High confidence | In force | High confidence | |
| US D720,972 | Wand for Fusing Pipe In force · High confidence | In force | High confidence | |
| US D720,973 | Wand for Fusing Pipe In force · High confidence | In force | High confidence | |
| US D721,789 | Cartridge Check Assembly In force · High confidence | In force | High confidence | |
| US D724,182 | Check Retainer In force · High confidence | In force | High confidence | |
| US D725,448 | Wand for Fusing Pipe In force · High confidence | In force | High confidence |
Also on record, not counted in the 146: 4 patents in force now held by others · 16 patents ended · 25 applications pending · 12 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.