Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4971895 | Double exposure method of photoprinting with liquid photopolymers | — | 1990-11-20 |
| 4966827 | Polymer printing | — | 1990-10-30 |
| 4954421 | Photoflashing a liquid polymer layer on a phototool surface exposed to air | — | 1990-09-04 |
| 4888270 | Photoprinting process and apparatus for exposing paste consistency photopolymers | — | 1989-12-19 |
| 4775611 | Additive printed circuit boards with flat surface and indented primary wiring conductors | — | 1988-10-04 |
| 4756929 | High density printing wiring | — | 1988-07-12 |
| 4752553 | High resolution solder mask photopolymers for screen coating over circuit traces | — | 1988-06-21 |
| 4732829 | Polymer printing | — | 1988-03-22 |
| 4706167 | Circuit wiring disposed on solder mask coating | — | 1987-11-10 |
| RE32430 | Printed wiring board | — | 1987-06-02 |
| 4669869 | Photoprinting process and apparatus for exposing paste-consistency photopolymers | — | 1987-06-02 |
| 4657839 | Photoprinting process and apparatus for exposing paste-consistency photopolymers | — | 1987-04-14 |
| 4647524 | Transferring polymer from thin plastic films to photodevelop insulation patterns on printed wiring boards | — | 1987-03-03 |
| 4645733 | High resolution printed circuits formed in photopolymer pattern indentations overlaying printed wiring board substrates | — | 1987-02-24 |
| 4618567 | High resolution liquid photopolymer coating patterns over irregular printed wiring board surface conductors | — | 1986-10-21 |
| 4610941 | Method for photographically improving the resolution of screen printed photopolymer images | — | 1986-09-09 |
| 4591265 | System for contact printing with liquid photopolymers | — | 1986-05-27 |
| 4582778 | Multi-function photopolymer for efficiently producing high resolution images on printed wiring boards, and the like | — | 1986-04-15 |
| 4560639 | Reusable phototransparency image forming tools for direct contact printing | — | 1985-12-24 |
| 4556627 | Transferring polymer from thin plastic films to photodevelop insulation patterns on printed wiring boards | — | 1985-12-03 |
| 4544626 | Photoprinting process and apparatus for exposing photopolymers | — | 1985-10-01 |
| 4528259 | Printed wiring boards with solder mask over bare copper wires having large area thickened circuit pad connections | — | 1985-07-09 |
| 4506004 | Printed wiring board | — | 1985-03-19 |
| 4424089 | Photoprinting process and apparatus for exposing paste-consistency photopolymers | — | 1984-01-03 |
| 4260675 | Photoprinting plate and method of preparing printed circuit board solder masks therewith | — | 1981-04-07 |