Inventor
Melvin H. Boldt
Inventor
Glenview, IL, US
Overview
Patents· 41 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOCD1primary
LOCD157%
LOCD030%
H04NPictorial communication, e.g. television8%
LOCD25%
PatentTitleYear
4,491,872'Ultra-compact projection television receiver'1985D0275952'Television receiver cabinet'1984D0275953'Television receiver cabinet'1984D0275029'Automatic temperature sensing electric heater'1984D0271132'Portable radiant electric heater'1983D0270354'Pair of sunglasses'1983D0270157'Telephone handset'1983D0268758'Combined telephone and clock radio'1983D0268417'Pair of spectacles or similar article'1983D0267851'Combination microwave and convection oven'1983D0267424'Portable radiant electric heater'1982D0266668'Projection television receiver'1982D0266423'Projection television receiver'1982D0262018'Phonograph'1981D0261594'Egg cooker'1981D0260765'Phonograph'1981D0256357'Phonograph'1980D0256019'Hot air corn popper'1980D0255008'Cooking appliance handle'1980D0254769'Pressure cooker regulator'1980D0253867'Pressure cooker'1980D0253746'Pressure cooker regulator'1979D0253388'Electric pressure cooker'1979D0252665'Electric mini-oven with removable cover'1979D0250763'Digital clock radio'1979D0250448'Electric cooking utensil'1978D0248008'Microwave oven'1978D0248017'Thermostatic electric connector plug'1978D0248025'Television receiver'1978D0247948'Microwave oven'1978D0246713'Television receiver'1977D0246686'Deep fry cooker'1977D0246635'Wall-mounted smoke detector'1977D0245841'Television receiver'1977D0245842'Television receiver'1977D0244961'Combined phonograph and stereo receiver'1977D0244232'Television receiver'1977D0244231'Television receiver'19774,017,129'Television receiver cabinet with formed decorative front'1977D0244052'Television receiver'19774,006,300'Two-piece back for a console television receiver'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1984Patents assigned to ZENITH RADIO CORP (17)· patent assignee history
1977–1984Patents assigned to NAT PRESTO INDUSTRIES INC (15)· patent assignee history
1977–1985Based in Glenview, IL, US· patent location history
1978–1983Patents assigned to AMANA REFRIGERATION INC (3)· patent assignee history
1980–1981Patents assigned to ROWE INTERNATIONAL INC (3)· patent assignee history
1983Patents assigned to BAUSCH & LOMB (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ZENITH RADIO CORP | 17 | 1977–1984 |
| NAT PRESTO INDUSTRIES INC | 15 | 1977–1984 |
| AMANA REFRIGERATION INC | 3 | 1978–1983 |
| ROWE INTERNATIONAL INC | 3 | 1980–1981 |
| BAUSCH & LOMB | 2 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Glenview, Illinois, US | 41 | 1977–1985 |