Malcolm Paul Varnham
34Patents
17h-index
32Co-inventors
81Inventor score
Filing activity: Apr 5, 1989 → Feb 1, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5226321A | Vibrating planar gyro | Electricity | 197 | Expired |
| US6211964A | Method and structure for incorporating fiber optic acoustic sensors in a seismic array | Physics | 65 | Expired |
| US5992250A | Apparatus for the remote measurement of physical parameters | Physics | 55 | Expired |
| US6195162A | Seismic sensor with interferometric sensing apparatus | Physics | 48 | Expired |
| US6006828A | Apparatus for the remote deployment of valves | Fixed Constructions | 41 | Expired |
| US6532839B1 | Apparatus for the remote measurement of physical parameters | Physics | 38 | Expired |
| US5570437A | Apparatus for the remote measurement of physical parameters | Physics | 35 | Expired |
| US6160762A | Optical sensor | Physics | 35 | Expired |
| US7592568B2 | Apparatus for the industrial processing of a material by optical radiation | Electricity | 34 | Active |
| US5218867A | Single axis attitude sensor | Physics | 31 | Expired |
| US5872876A | Optical fibre sensor element | Physics | 30 | Expired |
| US7421175B2 | Apparatus for providing optical radiation | Electricity | 26 | Expired |
| US5540094A | Scale factor compensation for piezo-electric rate sensors | Physics | 22 | Expired |
| US5419194A | Single axis rate sensor noise reduction | Physics | 22 | Expired |
| US6766703B1 | Apparatus and method for enhancing remote sensor performance and utility | Fixed Constructions | 21 | Expired |
| US5991026A | Apparatus for multiplexing fibre-optic sensing interferometers | Physics | 20 | Expired |
| USRE37283E | Apparatus for the remote measurement of physical parameters | General | 18 | Expired |
| US6817257B2 | Apparatus for the remote measurement of physical parameters | Physics | 14 | Expired |
| US4949038A | Optical fiber having a helical core for sensing a magnetic field | Physics | 12 | Expired |
| US5629472A | Method of minimizing bias and achieving mode alignment by trimming a vibrating rate sensor | Physics | 10 | Expired |
| US5445007A | Method of balancing a vibrating rate sensor by removing a portion of the vibrating cylinder | Physics | 9 | Expired |
| US6307809A | Geophone with optical fiber pressure sensor | Physics | 7 | Expired |
| US7502391B2 | Eye safe high power fibre laser | Electricity | 6 | Expired |
| US5131749A | Reduction of demodulator offset errors in fibre-optic gyroscopes | Physics | 6 | Expired |
| US7120339B2 | Polarization-dependent optical fibre amplifier | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.