John C. Christenson
41Patents
17h-index
35Co-inventors
81Inventor score
Filing activity: Mar 23, 1978 → Apr 22, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5427975A | Method of micromachining an integrated sensor on the surface of a silicon wafer | Physics | 132 | Expired |
| US7908922B2 | Silicon integrated angular rate sensor | Physics | 111 | Active |
| US6428713B1 | MEMS sensor structure and microfabrication process therefor | Performing Operations; Transporting | 58 | Expired |
| US7293460B2 | Multiple-axis linear accelerometer | Physics | 47 | Expired |
| US5531121A | Micromachined integrated pressure sensor with oxide polysilicon cavity sealing | Physics | 40 | Expired |
| US7645627B2 | Method for manufacturing a sensor device | Performing Operations; Transporting | 39 | Active |
| US6393914B1 | Angular accelerometer | Physics | 39 | Expired |
| US4882294A | Process for forming an epitaxial layer having portions of different thicknesses | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6750152B1 | Method and apparatus for electrically testing and characterizing formation of microelectric features | Electricity | 35 | Expired |
| US4749441A | Semiconductor mushroom structure fabrication | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5919004A | Method and apparatus for protective encapsulation of structural members | Fixed Constructions | 23 | Expired |
| US7250322B2 | Method of making microsensor | Physics | 20 | Expired |
| US6500348B2 | Deep reactive ion etching process and microelectromechanical devices formed thereby | Performing Operations; Transporting | 20 | Expired |
| US7077007B2 | Deep reactive ion etching process and microelectromechanical devices formed thereby | Performing Operations; Transporting | 20 | Expired |
| US4251181A | Implement coupling apparatus for boom-type vehicle | Fixed Constructions | 19 | Expired |
| US6666092B2 | Angular accelerometer having balanced inertia mass | Physics | 17 | Expired |
| US8539832B2 | MEMS gyros with quadrature reducing springs | Physics | 17 | Active |
| US5213999A | Method of metal filled trench buried contacts | Electricity | 15 | Expired |
| US6829814B1 | Process of making an all-silicon microphone | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6761070B2 | Microfabricated linear accelerometer | Physics | 13 | Expired |
| US7134179B2 | Process of forming a capacitative audio transducer | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4159059A | Truss boom for material handling truck | Performing Operations; Transporting | 12 | Expired |
| US6894836B2 | Diffraction grating, method of making and method of using | Physics | 12 | Expired |
| US5829920A | Method of testing wrapped submerged piling for infestation | Fixed Constructions | 12 | Expired |
| US6685844B2 | Deep reactive ion etching process and microelectromechanical devices formed thereby | Performing Operations; Transporting | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.