Zetex PLC
17Patents
0Active
17Granted
31Portfolio score
Filing activity: Aug 17, 1999 → Sep 21, 2005
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6376314B1 | Method of semiconductor device fabrication | Electricity | 84 | Expired |
| US6802719B2 | Implantation method | Electricity | 24 | Expired |
| US6340918B2 | Negative feedback amplifier circuit | Physics | 23 | Expired |
| US6940145B2 | Termination structure for a semiconductor device | Electricity | 16 | Expired |
| US6249156A | Electric circuit | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6509607B1 | Semiconductor device with reduced source diffusion distance and method of making same | Electricity | 11 | Expired |
| US6249023A | Gated semiconductor device | Electricity | 10 | Expired |
| US7102416B2 | High side switching circuit | Electricity | 4 | Expired |
| US7301745B2 | Temperature dependent switching circuit | Electricity | 2 | Expired |
| US6778366B2 | Current limiting protection circuit | Electricity | 2 | Expired |
| US6329762A | Discharge lamp driver circuit | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7279880B2 | Temperature independent low voltage reference circuit | Physics | 2 | Expired |
| US6509625B1 | Guard structure for bipolar semiconductor device | Electricity | 1 | Expired |
| US6703664B1 | Power FET device | Electricity | 0 | Expired |
| US6649539B1 | Semiconductor contact fabrication method | Electricity | 0 | Expired |
| US7245174B2 | Analogue switch | Electricity | 0 | Expired |
| US7923751B2 | Bipolar transistor with a low saturation voltage | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.