David L. Trumper
39Patents
12h-index
35Co-inventors
81Inventor score
Filing activity: Jun 20, 1987 → Mar 7, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5196745A | Magnetic positioning device | Physics | 198 | Expired |
| US5631618A | Magnetic arrays | Electricity | 170 | Expired |
| US5699621A | Positioner with long travel in two dimensions | Emerging Cross-Sectional Technologies | 89 | Expired |
| US5294854A | Bearing for use in high resolution precision control device | Physics | 43 | Expired |
| US4767279A | Fluid composition and volumetric delivery control | Physics | 42 | Expired |
| US7117790B2 | Microcontact printing | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6003230A | Magnetic positioner having a single moving part | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6237452A | Precision high speed turning machine | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5157296A | Bearing for use in high resolution precision control device | Physics | 26 | Expired |
| US6066998A | Magnetic actuator with long travel in one direction | Electricity | 26 | Expired |
| US6316849A | Methods and apparatus involving selectively tailored electromagnetic fields | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7765905B2 | Magnetic micropositioner and method of providing the same | Emerging Cross-Sectional Technologies | 19 | Active |
| US6262503A | Method and apparatus for cooling current carrying coil | Electricity | 11 | Expired |
| US10177627B2 | Homopolar, flux-biased hysteresis bearingless motor | Electricity | 9 | Active |
| US7665983B2 | Microcontact printing | Emerging Cross-Sectional Technologies | 8 | Active |
| US8358039B2 | High-scan rate positioner for scanned probe microscopy | Performing Operations; Transporting | 7 | Active |
| US7275468B2 | Rotary fast tool servo system and methods | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7616084B2 | Variable reluctance fast positioning system and methods | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8669771B2 | System and method for providing electromagnetic imaging through electroquasistatic sensing | Physics | 4 | Active |
| US10876088B2 | Modular organ microphysiological system with integrated pumping, leveling, and sensing | Performing Operations; Transporting | 3 | Active |
| US7574947B2 | Rotary fast tool servo system and methods | Emerging Cross-Sectional Technologies | 3 | Active |
| US9395317B2 | System and method for providing electromagnetic imaging through electroquasistatic sensing | Physics | 3 | Active |
| US11360400B2 | Transport system having a magnetically levitated transportation stage | Electricity | 2 | Active |
| US10323221B2 | Device for controlled apical flow in cell culture inserts | Chemistry; Metallurgy | 2 | Active |
| US7772947B2 | Variable reluctance fast positioning system and methods | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.