Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414489 | Compact electric discharge lamp-and-ballast unit, and plug-in ballast module therefor | — | 1983-11-08 |
| D270480 | Compact fluorescent lamp or similar article for a lighting unit | — | 1983-09-06 |
| 4393330 | Method for effectively contacting manganese-activated zinc silicate phosphor with antimony oxide during phosphor coating, and resulting lamp | Henry Skwirut | 1983-07-12 |
| 4337414 | Compact fluorescent lamp having convoluted tubular envelope of tridimensional configuration, method of making such envelope, and lighting unit incorporating such lamp | — | 1982-06-29 |
| 4315192 | Fluorescent lamp using high performance phosphor blend which is protected from color shifts by a very thin overcoat of stable phosphor of similar chromaticity | Henry Skwirut | 1982-02-09 |
| 4300073 | Screw-in type lighting unit having a convoluted tridimensional fluorescent lamp | Henry Skwirut, Edward W. Morton | 1981-11-10 |
| 4286190 | Compact fluorescent lamp having a partitioned envelope | Henry Skwirut | 1981-08-25 |
| 4281271 | Compact fluorescent lamp having a partitioned envelope | John F. Gilmore | 1981-07-28 |
| 4185221 | Double-ended fluorescent lamp having a partitioned envelope | — | 1980-01-22 |
| 4184101 | Compact fluorescent lamp having a partitioned envelope | — | 1980-01-15 |
| 4182975 | Compact fluorescent lamp having a partitioned envelope, and method of manufacture | — | 1980-01-08 |