Winfield Solutions, LLC
10 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.
7
Ending by 2030
Apr 2028
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 20, 2026
- 1 fee due Jan 23, 2027The maintenance fee for Test sections, wind tunnels including the same, and methods of using the same (US 10,359,337) comes due Jan 23, 2027. Unpaid by Jul 23, 2027, it lapses early.
- 4 fees due Feb 4 to 28, 2027 · next Feb 4
- 2 fees due Mar 29, 2027
- 2 fees due May 5 to 14, 2027 · next May 5
- 5 fees due Jun 3 to 19, 2027 · next Jun 3
- 1 fee due Jul 14, 2027The maintenance fee for Adjustable liquid trap for liquid waste drainage under differential pressure conditions (US 10,533,922) comes due Jul 14, 2027. Unpaid by Jan 14, 2028, it lapses early.
- 2 fees due Aug 20 to 27, 2027 · next Aug 20
- 2 fees due Sep 17 to 22, 2027 · next Sep 17
- 2 fees due Oct 21 to 30, 2027 · next Oct 21
- 1 fee due Nov 5, 2027The maintenance fee for Automated Soil Measurement (US 10,641,756) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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 7,985,276 | Liquid fertilizing compositions In force · From the USPTO record | In force | From the USPTO record | |
| US 8,152,892 | Liquid fertilizing compositions In force · From the USPTO record | In force | From the USPTO record | |
| US 7,674,312 | Liquid fertilizing compositions In force · From the USPTO record | In force | From the USPTO record | |
| US 8,325,336 | Automated Soil Measurement Device In force · High confidence | In force | High confidence | |
| US 8,472,024 | Automated Soil Measurement Device In force · High confidence | In force | High confidence | |
| US 8,144,319 | Automated Soil Measurement Device In force · High confidence | In force | High confidence | |
| US 8,477,295 | Automated Soil Measurement Device In force · High confidence | In force | High confidence | |
| US 8,472,023 | Measurement of Nitrate-Nitrogen Concentration in Soil Based on Absorption Spectroscopy In force · High confidence | In force | High confidence | |
| US 8,689,619 | Low speed wind tunnel design for agricultural spray particle analysis In force · From the USPTO record | In force | From the USPTO record | |
| US 9,116,068 | Low speed wind tunnel design for agricultural spray particle analysis In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 72: 10 patents in force now held by others · 1 lapsed for an unpaid fee · 9 ended at full term. List them
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.
10 pending · 2 abandoned · 7 no status recorded