H. Keith Howard
11Patents
7h-index
3Co-inventors
59Inventor score
Filing activity: Aug 15, 1974 → Dec 3, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3986914A | Heat-sealing method for plastic containers | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5329098A | Open coil heater for efficient transport | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US3988184A | Method for applying closure strips to plastic film | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4692599A | Coil support insulator for an electric heater | Electricity | 17 | Expired |
| US4458141A | Electric heater and coil support insulator therefor | Electricity | 17 | Expired |
| US4617547A | Heater assembly | Electricity | 11 | Expired |
| US7075043B2 | Standoff for use with uncoiled bare wire and insulated runs of an open coil electric resistance heater, method of use, and an open coil resistance heater using the standoff | Electricity | 10 | Expired |
| US4559412A | Coil support insulator for an electric heater | Electricity | 6 | Expired |
| US6884974B2 | Mica board electrical resistance wire heater, subassemblies, components, and methods of assembly | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7154072B2 | Method of using open coil resistance heater in appliances with right and left hand installation capability | Electricity | 4 | Expired |
| US5324919A | Open coil heater for efficient transport with nestable heating elements | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.