Harold E. McCormick
17Patents
9h-index
10Co-inventors
69Inventor score
Filing activity: Aug 24, 1972 → Feb 2, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4251599A | Ferrous metal body coated with an alloy formed by an iron/silicon extended molybdenum plasma spray powder | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4024617A | Method of applying a refractory coating to metal substrate | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4299401A | Piston ring and method of making same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4115959A | Method for increasing the life of silicon carbide grinding wheels | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4085490A | Method of making a rolled metal piston ring | Emerging Cross-Sectional Technologies | 15 | Expired |
| US3985415A | Locking plug and receptacle therefor | Electricity | 13 | Expired |
| US4248440A | Titania-alumina-yttria piston ring facing | Chemistry; Metallurgy | 12 | Expired |
| US4182579A | Retaining ring | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4040637A | Low friction balanced piston ring | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US3947269A | Boron-hardened tungsten facing alloy | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4079949A | Integral spring piston ring | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8851029B2 | Opposed-piston cylinder bore constructions with solid lubrication in the top ring reversal zones | Emerging Cross-Sectional Technologies | 6 | Active |
| US4214762A | Rolled metal piston ring | Emerging Cross-Sectional Technologies | 6 | Expired |
| USRE31005E | Resilient plastic piston ring | General | 6 | Expired |
| US4032672A | Method for coating parts | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7486179B2 | Low-level oil sensor | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US4203644A | Spring lock | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.