Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10156992 | Method for data reduction of items of sensor data information | Dominik Geisler | 2018-12-18 |
| 6448732 | Dual mode portable suction cleaner | — | 2002-09-10 |
| 6363571 | Convertible upright vacuum | Jerry Schemm | 2002-04-02 |
| 5867556 | Anode mounting apparatus with thermal growth compensation for x-ray tube | Douglas J. Snyder, Dale G. Chrisien | 1999-02-02 |
| D388916 | Handle for a carpet cleaning machine | — | 1998-01-06 |
| D373861 | Portable carpet cleaning machine | — | 1996-09-17 |
| D290054 | Housing for a floor cleaning machine | — | 1987-05-26 |
| D290053 | Housing for a floor maintenance machine | — | 1987-05-26 |
| 4633541 | Floor treating machine | — | 1987-01-06 |
| 4506405 | Floor treating machine | — | 1985-03-26 |
| 4333202 | Floor scrubber with combined solution and recovery tank | — | 1982-06-08 |
| D263475 | Scrubber | — | 1982-03-23 |
| 4293971 | Floor treating machine with squeegee | — | 1981-10-13 |
| 4251896 | Floor machine with gimballed brush drive | — | 1981-02-24 |
| 4236269 | Vertical axis brush | — | 1980-12-02 |
| 4218798 | Floor treating machine | — | 1980-08-26 |
| D255356 | Powered sweeper | — | 1980-06-10 |