David John McCartney
9Patents
6h-index
5Co-inventors
52Inventor score
Filing activity: May 17, 1989 → Feb 16, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4946245A | Optical filters | Physics | 120 | Expired |
| US6309069A | Personal identification | Physics | 42 | Expired |
| US6687389B2 | Imaging apparatus | Physics | 37 | Expired |
| US6907135B2 | Security check provision | Physics | 33 | Expired |
| US6333988A | Personal identification | Physics | 28 | Expired |
| US6549118B1 | Security apparatus and method | Physics | 28 | Expired |
| US5386771A | Disposable unitary dampening roller | Performing Operations; Transporting | 4 | Expired |
| US7424135B2 | Security check provision | Physics | 3 | Expired |
| US5164847A | Holographic element | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.