58 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jul 2034. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jul 2034
Next term end
34
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 2039 · High confidence
Also notable
Ends Apr 2039 · High confidence
Also notable
Ends Nov 2039 · High confidence
Pipe for Fluid Distribution
US D1,022,153
Cited by 12 later US patents, top 10% of design patents granted in 2024 in our data. Protection runs to 2039.
Pipe for Fluid Distribution
US D1,022,155
Cited by 11 later US patents, top 10% of design patents granted in 2024 in our data. Protection runs to 2039.
Branched Piping for Fluid Distribution
US D1,050,363
Cited by 7 later US patents, top 25% of design patents granted in 2024 in our data. Protection runs to 2039.
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 Dec 18, 2026The maintenance fee for Self-Test Methods and Systems for Submersible Pump Systems (US 10,323,647) comes due Dec 18, 2026. Unpaid by Jun 21, 2027, it lapses early.
- 1 fee due Jun 5, 2027The maintenance fee for Split Volute for Submersible Pump (US 11,835,061) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
- 1 fee due Nov 14, 2027The maintenance fee for In-Line Pumping Apparatus, System and Method for Increasing Liquid Flow in Gravity Networks (US 11,982,280) comes due Nov 14, 2027. Unpaid by May 15, 2028, it lapses early.
Recent changes
- 6 of the patents on this record were granted since Aug 17, 2026
What they patent
The 5 largest of its 34 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Branched Piping for Fluid Distribution | 4 in force | to May 2041 |
| In-Line Pumping Apparatus, System and Method for Increasing Liquid Flow in Gravity Networks | 3 in force | to Dec 2039 |
| Split Volute for Submersible Pump | 2 in force | to Nov 2042 |
| Pipe for Fluid Distribution (2021) | 2 in force | to Oct 2041 |
| Pipe for Fluid Distribution (2021) | 2 in force | to Jul 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,719,527 | Shred and Shear Pump In force · High confidence | In force | High confidence | |
| US 10,174,769 | Shred and Shear Pump In force · Low confidence | In force | Low confidence | |
| US 9,726,179 | Wastewater Pump In force · High confidence | In force | High confidence | |
| US 10,323,647 | Self-Test Methods and Systems for Submersible Pump Systems In force · High confidence | In force | High confidence | |
| US D1,022,150 | Branched Pipe for Fluid Distribution In force · High confidence | In force | High confidence | |
| US D1,022,151 | Branched Pipe for Fluid Distribution In force · High confidence | In force | High confidence | |
| US D1,022,152 | Pipe for Fluid Distribution In force · High confidence | In force | High confidence | |
| US D1,022,153 | Pipe for Fluid Distribution In force · High confidence | In force | High confidence | |
| US D1,022,154 | Pipe for Fluid Distribution In force · High confidence | In force | High confidence | |
| US D1,022,155 | Pipe for Fluid Distribution In force · High confidence | In force | High confidence |
Also on record, not counted in the 58: 1 patent ended · 3 applications pending · 3 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.