Fluid Handling LLC
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
2
Ending by 2030
Jul 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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.
- 2 fees due Dec 11 to 27, 2026 · next Dec 11
- 2 fees due Feb 13 to 22, 2027 · next Feb 13
- 3 fees due Apr 1 to 27, 2027 · next Apr 1
- 1 fee due May 12, 2027The maintenance fee for E-11 switch assembly (US 10,473,507) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
- 1 fee due Jun 30, 2027The maintenance fee for Contoured check valve disc for low cracking pressure (US 10,520,101) comes due Jun 30, 2027. Unpaid by Jan 3, 2028, it lapses early.
- 3 fees due Jul 7 to 28, 2027 · next Jul 7
- 1 fee due Aug 13, 2027The maintenance fee for Fluid routing methods for a spiral heat exchanger with lattice cross section made via additive manufacturing (US 11,898,804) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D686,699 | Balancing valve In force · From the USPTO record | In force | From the USPTO record | |
| US D706,394 | Combined balancing scale and knob for a balancing valve In force · From the USPTO record | In force | From the USPTO record | |
| US 8,700,221 | Method and Apparatus for Pump Control Using Varying Equivalent System Characteristic Curve, Aka an Adaptive Control Curve In force · High confidence | In force | High confidence | |
| US 11,274,767 | Flow rate scale field calibration for balancing valve In force · From the USPTO record | In force | From the USPTO record | |
| US 9,170,137 | Rotatable orifice plate for direct flow measurement In force · From the USPTO record | In force | From the USPTO record | |
| US 9,016,140 | Valve having rotatable valve ball with calibrated orifice and coaxial upstream/downstream ports and angled taps to measure upstream/downstream pressures for flow measurement In force · From the USPTO record | In force | From the USPTO record | |
| US 9,366,582 | Combination isolation valve and check valve with integral flow rate, pressure, and/or temperature measurement In force · From the USPTO record | In force | From the USPTO record | |
| US 10,048,701 | Dynamic linear control methods and apparatus for variable speed pump control In force · From the USPTO record | In force | From the USPTO record | |
| US 9,714,717 | Flow switch assembly featuring two-part base assembly with non-metallic upper part and metallic lower part In force · From the USPTO record | In force | From the USPTO record | |
| US 9,611,856 | Mixed theoretical and discrete sensorless converter for pump differential pressure and flow monitoring In force · From the USPTO record | In force | From the USPTO record |
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
5 pending · 4 abandoned · 1 no status recorded