Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660627 | Method of growing lutetium oxyorthosilicate crystals | Ralph A. Manente, Frank Bruni, Charles L. Melcher, Jeffrey S. Schweitzer | 1997-08-26 |
| 4850555 | Stake and coupler for irrigation device | Jack L. Lemkin, Eugene A. Zilber | 1989-07-25 |
| D286670 | Sprinkler base | Jack L. Lemkin | 1986-11-11 |
| D286138 | Tray for a garden watering set | Jack L. Lemkin, Eugene A. Zilber | 1986-10-14 |
| D284785 | Sprinkler stake | Jack L. Lemkin | 1986-07-22 |
| D283790 | Tray for a garden watering set | Jack L. Lemkin, Eugene A. Zilber | 1986-05-13 |
| 4574477 | Hole cutter for plastic tubing | Jack L. Lemkin, Eugene A. Zilber | 1986-03-11 |
| D282769 | Oscillator sprinkler | Jack L. Lemkin | 1986-02-25 |
| 4562865 | Timed water shut-off device | Jack L. Lemkin, Eugene A. Zilber | 1986-01-07 |
| D281808 | Timer-shut off valve | Jack L. Lemkin, Eugene A. Zilber | 1985-12-17 |