Valqua, Ltd.
2 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.
Previously recorded as Nippon Valqua Industries, Ltd. (to 2018)
8
Ending by 2030
Nov 2026
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.
- 1 fee due Dec 23, 2026The maintenance fee for Process for producing a fluororesin sheet containing a filler and a fluoroesin sheet containing a filler (US 9,061,449) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 1 fee due Jan 7, 2027The maintenance fee for Sealing material for thin plate member (US 9,077,010) comes due Jan 7, 2027. Unpaid by Jul 7, 2027, it lapses early.
- 1 fee due Feb 6, 2027The maintenance fee for Method for producing electrode film for electric double layer capacitors (US 10,373,768) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
- 1 fee due Mar 29, 2027The maintenance fee for Functional molded article and method for producing same (US 9,144,926) comes due Mar 29, 2027. Unpaid by Sep 29, 2027, it lapses early.
- 1 fee due Apr 30, 2027The maintenance fee for Metal Gasket (US 11,802,621) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
- 1 fee due May 21, 2027The maintenance fee for Substrate with conductive layer (US 11,825,601) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.
- 1 fee due Jun 5, 2027The maintenance fee for Low heat-resistant sensor (US 11,835,539) comes due Jun 5, 2027. Unpaid by Dec 6, 2027, it lapses early.
- 1 fee due Oct 26, 2027The maintenance fee for Filled fluororesin sheet, process for producing the same, and gasket (US 9,321,212) comes due Oct 26, 2027. Unpaid by Apr 26, 2028, it lapses early.
Recent changes
- 5 of the patents on this record were granted since Aug 16, 2026
- 1 term has ended 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 7,866,669 | Composite sealing material In force · From the USPTO record | In force | From the USPTO record | |
| US 9,061,449 | Process for producing a fluororesin sheet containing a filler and a fluoroesin sheet containing a filler In force · From the USPTO record | In force | From the USPTO record | |
| US 8,074,967 | Gate valve for vacuum and seal member used therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 8,349,965 | Fluororubber composition capable of forming crack-resistant seal and crack-resistant seal formed from the composition In force · From the USPTO record | In force | From the USPTO record | |
| US 9,447,881 | Seal material In force · From the USPTO record | In force | From the USPTO record | |
| US 8,181,972 | Sealing material for dovetail groove and vacuum gate valve provided with sealing material for dovetail groove In force · From the USPTO record | In force | From the USPTO record | |
| US D754,308 | Composite sealing material In force · From the USPTO record | In force | From the USPTO record | |
| US 9,321,212 | Filled fluororesin sheet, process for producing the same, and gasket In force · From the USPTO record | In force | From the USPTO record | |
| US 8,608,856 | Sealing part and substrate processing apparatus In force · High confidence | In force | High confidence | |
| US 8,888,106 | Seal plate, seal member that is used in seal plate, and method for manufacturing the same In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 106: 2 patents in force now held by others · 16 lapsed for an unpaid fee · 8 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.
5 pending · 6 abandoned · 10 no status recorded