Bruce E. Koppe
22Patents
7h-index
15Co-inventors
66Inventor score
Filing activity: Aug 11, 1988 → Dec 3, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5177631A | Magnetic position sensor | Physics | 19 | Expired |
| US7288285B2 | Delivering organic powder to a vaporization zone | Chemistry; Metallurgy | 18 | Expired |
| US7288286B2 | Delivering organic powder to a vaporization zone | Electricity | 15 | Expired |
| US7238389B2 | Vaporizing fluidized organic materials | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7232588B2 | Device and method for vaporizing temperature sensitive materials | Electricity | 12 | Expired |
| US7625601B2 | Controllably feeding organic material in making OLEDs | Electricity | 12 | Active |
| US7165340B2 | Feeding organic material to a heated surface | Electricity | 12 | Expired |
| US7501151B2 | Delivering particulate material to a vaporization zone | Chemistry; Metallurgy | 7 | Active |
| US4914390A | Transducer for determining the instantaneous relative angular positions between two members | Physics | 5 | Expired |
| US7625602B2 | Controllably feeding powdered or granular material | Chemistry; Metallurgy | 5 | Active |
| US7501152B2 | Delivering particulate material to a vaporization zone | Chemistry; Metallurgy | 5 | Active |
| US5373365A | Apparatus and method for measuring particle contamination | Physics | 3 | Expired |
| US4942343A | Torque measuring and transmitting system for a web spooling mechanism | Physics | 3 | Expired |
| US7883583B2 | Vaporization apparatus with precise powder metering | Chemistry; Metallurgy | 1 | Active |
| US8027574B2 | Vaporization of thermally sensitive materials | Chemistry; Metallurgy | 1 | Active |
| US7364772B2 | Method for coating an organic layer onto a substrate in a vacuum chamber | Chemistry; Metallurgy | 1 | Active |
| US7465475B2 | Method for controlling the deposition of vaporized organic material | Electricity | 1 | Active |
| US7398605B2 | Method of feeding particulate material to a heated vaporization surface | Electricity | 0 | Active |
| US8101235B2 | Vaporization apparatus with precise powder metering | Chemistry; Metallurgy | 0 | Active |
| US7989021B2 | Vaporizing material at a uniform rate | Chemistry; Metallurgy | 0 | Active |
| US8012537B2 | Controlling the vaporization of organic material | Electricity | 0 | Active |
| US7704554B2 | Device and method for vaporizing temperature sensitive materials | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.