Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021738 | Carriage electrode contact system used in coating objects by vacuum deposit | — | 2000-02-08 |
| 5970908 | Apparatus and improved polymerization gun for coating objects by vacuum deposit | Richard Vignola, deceased | 1999-10-26 |
| 5622564 | Metallizing apparatus | Richard Vignola, deceased | 1997-04-22 |
| 4366753 | Circumferential registration control system | Sun C. Chang | 1983-01-04 |
| 4335316 | Web break detector with adjustable scanning head | Sun C. Chang | 1982-06-15 |
| 4291825 | Web guiding system | — | 1981-09-29 |