Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12372555 | Current-sensing resistor | Andreas Baum, Marcus Escher, Arno Fey, Rainer Ostasch | 2025-07-29 |
| D267813 | Bathtub | William L. Lippert, Jr. | 1983-02-01 |
| D262988 | Lavatory | William L. Lippert, Jr. | 1982-02-09 |