William Witcraft
27Patents
11h-index
27Co-inventors
71Inventor score
Filing activity: Sep 30, 1992 → Jul 24, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5280894A | Fixture for backside wafer etching | Emerging Cross-Sectional Technologies | 315 | Expired |
| US6048739A | Method of manufacturing a high density magnetic memory device | Electricity | 84 | Expired |
| US5569617A | Method of making integrated spacer for magnetoresistive RAM | Electricity | 62 | Expired |
| US7126330B2 | Integrated three-dimensional magnetic sensing device and method to fabricate an integrated three-dimensional magnetic sensing device | Physics | 43 | Expired |
| US7358722B2 | Integrated three-dimensional magnetic sensing device and method to fabricate an integrated three-dimensional magnetic sensing device | Physics | 30 | Active |
| US7637024B2 | Magnetic field sensing device for compassing and switching | Electricity | 26 | Expired |
| US5820924A | Method of fabricating a magnetoresistive sensor | Physics | 21 | Expired |
| US7239000B2 | Semiconductor device and magneto-resistive sensor integration | Physics | 20 | Expired |
| US6771533B2 | Magnetic non-volatile memory coil layout architecture and process integration scheme | Electricity | 16 | Expired |
| US6903429B2 | Magnetic sensor integrated with CMOS | Electricity | 13 | Expired |
| US6717403B2 | Method and system for improving the efficiency of the set and offset straps on a magnetic sensor | Physics | 12 | Expired |
| US6850057B2 | Barber pole structure for magnetoresistive sensors and method of forming same | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6914805B2 | Method for building a magnetic keeper or flux concentrator used for writing magnetic bits on a MRAM device | Physics | 8 | Expired |
| US6700371B2 | Three dimensional conductive strap for a magnetorestrictive sensor | Physics | 8 | Expired |
| US7037604B2 | Magnetic sensing device | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7449882B2 | Integrated set/reset driver and magneto-resistive sensor | Physics | 6 | Active |
| US7046547B2 | Magnetic non-volatile memory coil layout architecture and process integration scheme | Electricity | 5 | Expired |
| US7420365B2 | Single chip MR sensor integrated with an RF transceiver | Physics | 4 | Active |
| US6845036B2 | Magnetic non-volatile memory coil layout architecture and process integration scheme | Electricity | 4 | Expired |
| US7277793B2 | Method and apparatus for an integrated GPS receiver and electronic compassing sensor device | Physics | 3 | Active |
| US7423329B2 | Semiconductor device and magneto-resistive sensor integration | Physics | 2 | Active |
| US7426097B2 | Giant magnetoresistive device with buffer-oxide layer between seed and ferromagnetic layers to provide smooth interfaces | Electricity | 2 | Expired |
| US6961265B2 | Magnetic non-volatile memory coil layout architecture and process integration scheme | Electricity | 2 | Expired |
| US7206693B2 | Method and apparatus for an integrated GPS receiver and electronic compassing sensor device | Physics | 1 | Expired |
| US7265543B2 | Integrated set/reset driver and magneto-resistive sensor | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.