Issued Patents All Time
Showing 101–125 of 128 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131932 | Filter replacement indicator | — | 1992-07-21 |
| 5111529 | Portable air humidifier | — | 1992-05-05 |
| D317043 | Air cleaner | David Lekhtman | 1991-05-21 |
| 5014338 | Portable air humidifier | — | 1991-05-07 |
| D313126 | Illuminated picture frame with a cover | Jorg Ratslaff | 1990-12-25 |
| D311820 | Illuminated picture frame | Paul K. Cohen, Jorg Ratzlaff | 1990-11-06 |
| D307050 | Aroma diffuser unit | Jorg Ratzlaff | 1990-04-03 |
| D304758 | Fragrance cartridge | Jorg Ratzlaff | 1989-11-21 |
| 4819353 | Illuminated picture frame | Paul K. Cohen, Jorg Ratzlaff | 1989-04-11 |
| 4818344 | Water distilling apparatus | — | 1989-04-04 |
| 4804821 | Aroma diffuser assembly | — | 1989-02-14 |
| 4795883 | Aroma generating apparatus and driver circuit | Constantine D. Pezaris | 1989-01-03 |
| D295217 | Fragrance diffuser wall unit | — | 1988-04-12 |
| 4731520 | Aroma diffuser apparatus | Eugene Puchalski, Mark E. Hardy | 1988-03-15 |
| 4697066 | Electric hair curling waved with improved heating element arrangement | — | 1987-09-29 |
| 4694142 | Electric air heater | — | 1987-09-15 |
| 4661683 | Hair curling set | — | 1987-04-28 |
| RE32349 | Hair roller | — | 1987-02-10 |
| 4631387 | Aroma generating apparatus with electrical heating element | — | 1986-12-23 |
| 4569360 | Hair curling roller | — | 1986-02-11 |
| 4548218 | Hair curling roller | — | 1985-10-22 |
| 4489233 | Hair roller heating unit | — | 1984-12-18 |
| D276258 | Quartz heater | — | 1984-11-06 |
| 4382447 | Hair roller | — | 1983-05-10 |
| 4328818 | Hand held hair dryer | — | 1982-05-11 |