Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5405680 | Selective emissivity coatings for interior temperature reduction of an enclosure | David B. Chang, I-Fu Shih, Albert J. Jicha | 1995-04-11 |
| 5311137 | Liquid crystal electric field tester for circuit boards | David B. Chang, James E. Drummond, Michael F. Berg | 1994-05-10 |
| 5099131 | Acquisition and testing of latent fingerprints using upconversion | Patrick C. Brownrigg, Victor Vali | 1992-03-24 |
| 5041735 | Miniature infrared test target | David B. Chang, Kenn S. Bates, I-Fu Shih | 1991-08-20 |
| 5033203 | Curing oven using Wellsbach conversion | David B. Chang, James E. Drummond, I-Fu Shih | 1991-07-23 |
| 5022040 | Upconversion pumped lasers | David B. Chang | 1991-06-04 |
| 5003179 | Full color upconversion display | — | 1991-03-26 |
| 4935722 | Transparent eyelevel upconversion stoplight for vehicles | — | 1990-06-19 |
| 4782494 | Method of providing continuous lasing operation | David B. Chang | 1988-11-01 |
| 4760257 | Apparatus for measuring properties of a laser emission | I-Fu Shih, Robert Tzeng | 1988-07-26 |
| 4755673 | Selective thermal radiators | David B. Chang | 1988-07-05 |