Robert M. Spencer
19Patents
15h-index
14Co-inventors
75Inventor score
Filing activity: Jul 13, 1981 → Jun 30, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4429178A | Solar tracking apparatus utilizing photovoltaic flat panels and method | Emerging Cross-Sectional Technologies | 111 | Expired |
| US4869286A | Fluid injection system coupling and injector valve | Emerging Cross-Sectional Technologies | 83 | Expired |
| US4941518A | Fluid injection system | Physics | 69 | Expired |
| US5656238A | Plasma-enhanced vacuum drying | Human Necessities | 61 | Expired |
| US4817800A | Fluid injection system cassette and fluid packaging methods | Human Necessities | 47 | Expired |
| US5882611A | Cassette and delivery system | Human Necessities | 35 | Expired |
| US4833790A | Method and system for locating and positioning circular workpieces | Physics | 31 | Expired |
| US5887716A | Liquid sterilant cassette and indicia system | Human Necessities | 30 | Expired |
| US4899519A | Fluid injection system cassette and fluid packaging methods | Human Necessities | 29 | Expired |
| US4913196A | Fluid injection system pumping methods | Human Necessities | 27 | Expired |
| US4938262A | Fluid injection system | Human Necessities | 25 | Expired |
| US6060019A | Plasma-enhanced vacuum drying | Human Necessities | 20 | Expired |
| US6891442B2 | Ring oscillator gates in a matrix for aberrant logic gate timing detection | Electricity | 17 | Expired |
| US5939033A | Gas/vapor delivery from solid materials | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4367365A | Solar energy conversion arrangement utilizing photovoltaic members | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4909287A | Fluid injection system | Physics | 15 | Expired |
| US5919418A | Delivery system and method for delivering a plurality of packages containing a solid material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5911950A | Method of releasing gas or vapor from a solid material | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5925316A | Injection system and method for releasing gas or vapor from a solid material | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.