Avantek, Inc.
33Patents
0Active
33Granted
38Portfolio score
Filing activity: Feb 4, 1971 → Feb 1, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4901853A | Substrate transport box | Electricity | 135 | Expired |
| US4978639A | Method for the simultaneous formation of via-holes and wraparound plating on semiconductor chips | Emerging Cross-Sectional Technologies | 106 | Expired |
| US4842699A | Method of selective via-hole and heat sink plating using a metal mask | Electricity | 94 | Expired |
| US4808273A | Method of forming completely metallized via holes in semiconductors | Electricity | 80 | Expired |
| US5111455A | Interleaved time-division multiplexor with phase-compensated frequency doublers | Electricity | 59 | Expired |
| US4672023A | Method for planarizing wafers | Electricity | 44 | Expired |
| US5127984A | Rapid wafer thinning process | Electricity | 34 | Expired |
| US5288660A | Method for forming self-aligned t-shaped transistor electrode | Electricity | 32 | Expired |
| US4213840A | Low-resistance, fine-line semiconductor device and the method for its manufacture | Electricity | 29 | Expired |
| US5306649A | Method for producing a fully walled emitter-base structure in a bipolar transistor | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4881050A | Thin-film microwave filter | Electricity | 27 | Expired |
| US4954790A | Enhanced coupled, even mode terminated baluns, and mixers and modulators constructed therefrom | Electricity | 25 | Expired |
| US4595881A | Distributed amplifier using dual-gate GaAs FET's | Electricity | 21 | Expired |
| US3978282A | Apparatus and method for measuring the transmission characteristics of a network | Electricity | 18 | Expired |
| US4926292A | Broadband printed spiral | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4940949A | High efficiency high isolation amplifier | Electricity | 15 | Expired |
| US4649354A | Switchable multi-frequency dielectric resonator oscillator | Electricity | 10 | Expired |
| US3931472A | Asynchronous quadriphase communications system and method | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4755772A | Switchable microwave oscillator | Electricity | 9 | Expired |
| US4737737A | Transmission injection-locked dielectric resonator oscillator | Electricity | 9 | Expired |
| US4928078A | Branch line coupler | Electricity | 9 | Expired |
| US4851787A | Low noise frequency synthesizer | Electricity | 9 | Expired |
| US4988959A | YIG tuned oscillator using composite feedback | Electricity | 9 | Expired |
| US4975065A | Microwave circuit module connector | Electricity | 9 | Expired |
| US4688005A | Self-oscillating mixer with Darlington transistors | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.