Inventor
David L. Perry
Inventor
St. Louis, MO, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G05Dprimary
G05DSystems for controlling or regulating non-electric variables13%
F24FAir-conditioning10%
F16FSprings6%
A43BCharacteristic features of footwear4%
A63CSkates4%
B60GVehicle suspension arrangements4%
G05BControl or regulating systems in general4%
Y10TTechnical subjects covered by former us classification4%
A43CFastenings or attachments of footwear3%
B62DMotor vehicles3%
PatentTitleYear
10,025,328Power stealing for a wireless-enabled thermostat201810,001,291Two mode thermostat with set-back temperature and humidity set-point feature20189,405,303'Power stealing for a wireless-enabled thermostat'20168,863,536'Two mode thermostat with set-back temperature and humidity set-point feature'20148,275,484'Stepper motor gas valve and method of control'20127,793,510'Two mode thermostat with set-back temperature and humidity set-point feature'20107,748,639'Control of a heating and cooling system for a multi-level space'20107,731,096'Controller for two-stage heat source usable with single and two stage thermostats'20107,475,558'Control of a heating and cooling system for a multi-level space'20096,873,528'Supplemental heat conduction path for card to chassis heat dissipation'20056,839,235'Embedded heat pipe for a conduction cooled circuit card assembly'20056,739,615'Snowboard binding'20046,729,390'Control for heat pump with auxiliary heat source'20046,557,884'Active engagement system for engaging a snowboard boot to a binding'20036,554,297'Dive resistant buckle'20036,435,418'Thermostat having an illuminated keypad and display'20026,119,950'Thermostat with load relay cycling feature'20006,099,018'Snowboard binding'2000D0375831'Tension and length adjuster for a shoelace or shock cord'19965,570,837'Programmable digital thermostat with means for enabling temporary connection of a battery thereto'19965,511,290'Elastic cord tensioning and length adjusting apparatus'19965,394,760'Torque sensor for a power assist steering system'19955,092,626'Apparatus for controlling the damping of a shock absorber'19925,028,453'Method for reducing fouling'19915,016,908'Method and apparatus for controlling shock absorbers'19914,943,083'Signal conditioning circuit assembly'19904,634,971'Portable hand-held voltage sensor with manually adjustable reference voltage for comparison with sensed voltage'19874,449,100'Ignition system tester'19844,386,470'Drafting apparatus'19834,019,600'Anti-noise mounting means for transmissions'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1987Patents assigned to FORD MOTOR CO (2)· patent assignee history
1990–1992Patents assigned to MONROE AUTO EQUIPMENT CO (3)· patent assignee history
1990–1992Based in Sylvania, OH, US· patent location history
1996–2018Patents assigned to EMERSON ELECTRIC CO (12)· patent assignee history
1996Patents assigned to D P DESIGN INC (2)· patent assignee history
1996–2004Based in Essex Junction, VT, US· patent location history
2000–2004Patents assigned to BURTON CORP (4)· patent assignee history
2000–2018Based in Arnold, MO, US· patent location history
2004–2018Based in St. Louis, MO, US· patent location history
2005Based in Kinburn, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EMERSON ELECTRIC CO | 12 | 1996–2018 |
| BURTON CORP | 4 | 2000–2004 |
| MONROE AUTO EQUIPMENT CO | 3 | 1990–1992 |
| D P DESIGN INC | 2 | 1996 |
| FORD MOTOR CO | 2 | 1984–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Louis, MO, US | 8 | 2004–2018 |
| Essex Junction, VT, US | 6 | 1996–2004 |
| Arnold, MO, US | 4 | 2000–2018 |
| Sylvania, OH, US | 3 | 1990–1992 |
| Kinburn, CA | 2 | 2005 |