David Howard
10Patents
6h-index
13Co-inventors
63Inventor score
Filing activity: Jan 20, 1984 → Jun 9, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4510936A | Apparatus for the electrical stimulation of nerves | Human Necessities | 38 | Expired |
| USD523537S1 | Industrial floor drain | General | 24 | Expired |
| US5990809A | Underwater surveying system | Physics | 14 | Expired |
| US8393365B2 | Tire tread having serrated grooves | Performing Operations; Transporting | 9 | Active |
| US9202646B2 | Circuit breaker lockout | Electricity | 8 | Active |
| US8748759B2 | Circuit breaker lockout | Electricity | 7 | Active |
| US7264774B1 | Method and apparatus for sanitizing a drain | Fixed Constructions | 3 | Expired |
| USD373181S | Combined curb and drainage system | General | 3 | Expired |
| US8127996B1 | Customizable portable identification and memory device | Physics | 1 | Active |
| USD998554S1 | Shoulder for a tire | General | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.