Inventor
Douglas J. Scheffler
Inventor
McKinney, TX, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Kprimary
F16KValves32%
Y10TTechnical subjects covered by former us classification29%
G05DSystems for controlling or regulating non-electric variables26%
F15BSystems acting by means of fluids in general5%
A62CFire-fighting3%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges3%
F16LPipes3%
PatentTitleYear
10,920,896Top entry axial flow regulator202110,678,274Adjustable deadband control system202010,119,636Trapezoidal thread form having a wear indicator and high pressure connection fitting comprising same201810,041,602Top entry axial flow regulator20189,989,977Mechanism and method to adjust size of balanced valve20189,952,605Pilot operated fluid regulators having a reset apparatus and related methods20189,760,097'Adjustable deadband control system'20179,360,131'Actuator adapter plate'20169,213,339'Fluid regulator having improved flow stability'20159,176,505'Backpressure regulator with easy pump start-up'20159,145,904'Pilot operated fluid regulators having a reset apparatus and related methods'20159,091,366'Flow restricted seat ring for pressure regulators'20158,708,309'Self-aligning spring seat for fluid regulator and fluid regulator comprising self-aligning spring seat'20148,590,858'Anti-gradient cupped seat for pressure regulator'20137,896,028'Flow restricted seat ring for pressure regulators'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2021Based in McKinney, TX, US· patent location history
2013–2021Patents assigned to EMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC (14)· patent assignee history
2013–2016Patents assigned to SCHEFFLER DOUGLAS J (4)· patent assignee history
2013–2015Patents assigned to MCKINNEY HAROLD JOE (2)· patent assignee history
2014–2015Patents assigned to MCKINNEY HAROLD J (2)· patent assignee history
2014–2015Patents assigned to ROPER DANIEL G (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EMERSON PROCESS MAN REGULATOR TECHNOLOGIES INC | 14 | 2013–2021 |
| SCHEFFLER DOUGLAS Jself | 4 | 2013–2016 |
| MCKINNEY HAROLD J | 2 | 2014–2015 |
| MCKINNEY HAROLD JOE | 2 | 2013–2015 |
| ROPER DANIEL G | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| McKinney, Texas, US | 15 | 2011–2021 |