Crystal Technology, Inc.
20Patents
6Active
20Granted
37Portfolio score
Filing activity: Sep 26, 1985 → Aug 27, 2010 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5148503A | Apparatus and method for linearized cascade coupled integrated optical modulator | Physics | 80 | Expired |
| US6319430A | Preconditioned crystals of lithium niobate and lithium tantalate and method of preparing the same | Chemistry; Metallurgy | 24 | Expired |
| US5675673A | Integrated optic modulator with segmented electrodes and sloped waveguides | Physics | 11 | Expired |
| US4661738A | Compensation techniques for temperature effects and non-uniform amplitude distributions in saw devices | Electricity | 9 | Expired |
| US5854862A | Linearized optic modulator with segmented electrodes | Physics | 8 | Expired |
| US5671302A | Linearized optic modulator with segmented electrodes | Physics | 7 | Expired |
| US5310448A | Composition for growth of homogeneous lithium niobate crystals | Chemistry; Metallurgy | 6 | Expired |
| US5343827A | Method for crystal growth of beta barium boratean | Chemistry; Metallurgy | 6 | Expired |
| US5193097A | Optical device using a cerium-doped KTP crystal | Physics | 6 | Expired |
| US5742425A | Technique for electronically stabilizing the ouputs of acoustooptic devices | Physics | 5 | Expired |
| US5712722A | Driver circuit for stabilizing optical outputs of acoustooptic devices | Physics | 4 | Expired |
| US7649624B1 | Systems and methods for detecting scratches on non-semiconductor wafer surfaces | Physics | 3 | Active |
| US8425875B2 | Lithium niobate SAW wafer containing Ta impurities | Chemistry; Metallurgy | 2 | Active |
| US7153487B2 | Using condensed chemicals to precondition lithium niobate and lithium tantalate crystals | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7580182B2 | Frequency synthesis for acousto-optic devices | Physics | 2 | Active |
| US7595929B1 | Grooved backside acoustic termination of acousto-optic devices | Physics | 1 | Active |
| US5133990A | Technique for mass production of coded surface acoustic wave devices | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7381397B2 | Using condensed chemicals to precondition lithium niobate and lithium tantalate crystals | Emerging Cross-Sectional Technologies | 1 | Active |
| US7142735B2 | Acousto-optic tunable filter controller | Physics | 1 | Expired |
| US8262794B2 | Lithium niobate wafers with narrow distribution of surface acoustic wave properties | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.