Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534844 | Electroforming apparatus | — | 1985-08-13 |
| 4522659 | Method and apparatus for the manufacture of record stampers | — | 1985-06-11 |
| 4516301 | Method and apparatus for removing flash from a molded recorded disc | Harry H. Westerman, Jr. | 1985-05-14 |
| 4512455 | Disc turnover device | Joseph H. Thorn | 1985-04-23 |
| 4503806 | Lubricant detector and measuring device | Brian E. Lock, Joseph H. Thorn | 1985-03-12 |
| 4479853 | Method for the manufacture of record stampers | — | 1984-10-30 |
| 4478566 | Apparatus for injection molding an article | Bhupendra P. Patel | 1984-10-23 |
| 4475966 | Method and apparatus for manufacturing video disc caddy | Robert L. Turner | 1984-10-09 |
| 4470795 | Apparatus for manufacturing a disc record package | — | 1984-09-11 |
| 4465453 | Apparatus for manufacturing disc record package | Robert L. Turner | 1984-08-14 |
| 4463849 | Video disc caddy | Bhupendra P. Patel | 1984-08-07 |
| 4436603 | Apparatus for separating a replica from a matrix | Bhupendra P. Patel | 1984-03-13 |
| 4435922 | Apparatus for grinding the back surfaces of record molding stampers | — | 1984-03-13 |
| 4414167 | Method for molding an article | Bhupendra P. Patel | 1983-11-08 |
| 4402660 | Apparatus for producing disc records with a molded-in center hole | — | 1983-09-06 |
| 4400245 | Matrixing process for the manufacture of molded records | — | 1983-08-23 |
| 4385978 | Cathode head | — | 1983-05-31 |
| 4362492 | Apparatus for compression molding recorded discs | — | 1982-12-07 |
| 4341613 | Apparatus for electroforming | Marshall L. Whitehurst | 1982-07-27 |
| 4327830 | Record stamper protector | Bhupendra P. Patel | 1982-05-04 |
| 4316281 | Spacer for stacked recorded discs | — | 1982-02-16 |
| 4309265 | Cathode mask knob | — | 1982-01-05 |