Inventor
Richard L. Perl
Inventor
Mansfield, OH, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F24Cprimary
F24CDomestic stoves or ranges26%
F23NRegulating or controlling combustion22%
F23QIgnition13%
F03GSpring, weight, inertia or like motors9%
A21BBakers' ovens4%
A47JKitchen equipment4%
F23DBurners4%
H02HEmergency protective circuit arrangements4%
H05BElectric heating4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
PatentTitleYear
4,781,170'Traveling flame burner'19884,375,587'Microwave oven energization circuit and components therefor'1983RE029853'Gas igniter'19784,102,496'Thermal valve'1978RE029602'Domestic oven'19784,067,539'Gas valve'19784,053,136'Control circuit and adjustable valve for a gas appliance'19774,005,697'Gas cook top'19773,981,674'Control circuit and adjustable valve for a gas appliance'19763,973,551'Powered circulation oven'19763,968,785'Blue flame gas smooth top range'19763,934,811'Adjustable thermal valve'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1988Patents assigned to TAPPAN CO (10)· patent assignee history
1976–1988Based in Mansfield, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TAPPAN CO | 10 | 1976–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mansfield, OH, US | 12 | 1976–1988 |