Hal D. Mitchell
26Patents
17h-index
14Co-inventors
74Inventor score
Filing activity: May 17, 1976 → Jan 14, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4558470A | Shock attenuation system | Emerging Cross-Sectional Technologies | 90 | Expired |
| US4534068A | Shock attenuation system | Emerging Cross-Sectional Technologies | 88 | Expired |
| US4627114A | Shock attenuation structure | Emerging Cross-Sectional Technologies | 85 | Expired |
| US4484364A | Shock attenuation system for headgear | Emerging Cross-Sectional Technologies | 65 | Expired |
| US5415564A | Junction box for quick release mounting of electrical circuit components | Electricity | 46 | Expired |
| US4850056A | Athletic pants | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4919037A | Clipboard ballistic shield | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4698849A | Football jersey | Human Necessities | 32 | Expired |
| US4295227A | Shoulder pad | Human Necessities | 30 | Expired |
| US4322859A | Shoulder pad | Human Necessities | 29 | Expired |
| USD304258S | Football jersey | General | 26 | Expired |
| US4320537A | Shoulder pad | Human Necessities | 25 | Expired |
| US5054121A | Athletic pad | Human Necessities | 23 | Expired |
| US4158242A | Shoulder pad | Human Necessities | 23 | Expired |
| US4010559A | Athletic shoe | Human Necessities | 19 | Expired |
| US4135252A | Shoulder pad | Human Necessities | 19 | Expired |
| US4844460A | Method of fabricating a ball-striking implement | Human Necessities | 17 | Expired |
| US4407021A | Suspension system for headgear | Human Necessities | 14 | Expired |
| US4868925A | Football shoulder pads with accordian-hinge flap | Human Necessities | 14 | Expired |
| US4068674A | Campers tenting with a combination of entry and support means | Fixed Constructions | 13 | Expired |
| US4715066A | Shoulder pad | Human Necessities | 12 | Expired |
| US5275196A | Pressure relief valve for tire rim | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4679253A | Shoulder pad truss arch system | Human Necessities | 8 | Expired |
| US4435851A | Flap hinge for a shoulder pad | Human Necessities | 7 | Expired |
| US4680814A | Shoulder pad spring arch system | Human Necessities | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.