David C. Hill
14Patents
7h-index
14Co-inventors
63Inventor score
Filing activity: Aug 13, 1974 → May 28, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7035619B1 | System and method for integrating call detail records for a multiple network environment | Electricity | 35 | Expired |
| US3963383A | Air driven pump | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4045593A | Method for producing moisture resistant electrodes | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6016606A | Navigation device having a viewer for superimposing bearing, GPS position and indexed map information | Physics | 17 | Expired |
| USD293468S | I.V. infusion pump | General | 10 | Expired |
| US7514239B2 | Nucleic acid molecules encoding beta-like glycoprotein hormone polypeptides and heterodimers thereof | Physics | 7 | Expired |
| US5060390A | Navigation aid | Physics | 7 | Expired |
| US4189509A | Resistor device and method of making | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4189700A | Resistor device | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4164147A | Temperature sensing apparatus | Physics | 6 | Expired |
| US7358341B2 | Beta-like glycoprotein hormone polypeptide and heterodimer | Physics | 3 | Expired |
| US5249667A | Apparatus for maintaining optimum artist's pigment media characteristics and method of making same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5339528A | Transparency holder for navigation aid | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5461792A | Navigation aid with biangulation | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.