Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D277748 | Pinned-extrusion heat sink for electronic devices | — | 1985-02-26 |
| D275749 | Slip-on heat sink for long integrated-circuit modules | — | 1984-10-02 |
| D275648 | Stud-mounted heat sink for electronic devices | — | 1984-09-25 |
| D275666 | Asymmetric heat sink for electronic devices | — | 1984-09-25 |
| D275388 | Unsymmetrical heat sink for electronic devices | — | 1984-09-04 |
| D273006 | Twin heat sink for electronic semiconductor devices | — | 1984-03-13 |
| D272902 | Self-fastened heat sink | Philip A. Johnson | 1984-03-06 |
| D269084 | Dual heat sink for electronic semiconductor devices | — | 1983-05-24 |
| D268833 | Sheet-metal heat sink for electronic semiconductor devices | — | 1983-05-03 |
| D267942 | Heat-sink for electronic semiconductor devices | — | 1983-02-15 |
| D265987 | Self-holding heat sink for electronic devices | — | 1982-08-31 |
| 4321423 | Heat sink fastenings | Philip A. Johnson | 1982-03-23 |
| D263042 | Winged-collar heat sink for electronic devices | — | 1982-02-16 |
| D262960 | Flanged-collar heat sink for electronic devices | Philip A. Johnson | 1982-02-09 |
| D262961 | Clip-on heat sink for electronic devices | — | 1982-02-09 |
| D262203 | Self-fastened heat sink for electronic devices | Philip A. Johnson | 1981-12-08 |
| 4261005 | Miniature heat sink | — | 1981-04-07 |
| 4235285 | Self-fastened heat sinks | Philip A. Johnson | 1980-11-25 |
| 4215361 | Winged self-fastened heat sinks for semiconductor devices | — | 1980-07-29 |
| 4203488 | Self-fastened heat sinks | Philip A. Johnson | 1980-05-20 |