Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7409745 | Cleaning pad for vacuum cleaner | Diane L. Dodson, John T. Lackner | 2008-08-12 |
| 6347466 | Method for modifying the tension of a canvas | Mark Russell | 2002-02-19 |
| 5792224 | Connector system | Shuzhen Fu, John J. Andrisin, Jr. | 1998-08-11 |
| 5335740 | Drive system | Robert B. Meyer, Hans J. Matuschek | 1994-08-09 |
| 5316097 | Lawn mower | Robert B. Meyer, Hans J. Matuscheck, Daniel Kennedy | 1994-05-31 |
| 5308288 | Vacuum sweeper drive belt | Alfred Schiazza | 1994-05-03 |
| 5285550 | Self-propelled vacuum cleaner having forward and reverse drive | Robert B. Meyer, Hans J. Matuschek | 1994-02-15 |
| 5251711 | Lawn mower | Robert B. Meyer, Hans J. Matuscheck, Daniel Kennedy | 1993-10-12 |
| 5187832 | Convertible self-proprelled vacuum cleaner | Robert B. Meyer, Hans J. Matuschek | 1993-02-23 |
| 5143524 | Electrostatic particle filtration | Ion I. Inculet, James C. Murphy | 1992-09-01 |
| D328166 | Handle extension for a vacuum cleaner | Roger S. Ford | 1992-07-21 |
| 5115537 | Drive system | Robert B. Meyer, Hans J. Matuschek | 1992-05-26 |
| 5092915 | Disposable dust bag for vacuum cleaners and the like | — | 1992-03-03 |
| 5086536 | Convertible vacuum cleaner | Stanley E. Grzywna, Ralph A. Weber, Thomas E. Baird | 1992-02-11 |
| 5064455 | Disposable dust bag for vacuum cleaners and the like | — | 1991-11-12 |
| 5057131 | Vacuum cleaner filter bag assembly | Stanley E. Grzywna | 1991-10-15 |
| D320491 | Vacuum cleaner | Roger S. Ford | 1991-10-01 |
| 5007133 | Convertible vacuum cleaner | Stanley E. Grzywna, Ralph A. Weber, Thomas E. Baird | 1991-04-16 |
| 4947512 | Convertible vacuum cleaner | Stanley E. Grzywna, Ralph A. Weber, Thomas E. Baird | 1990-08-14 |
| 4877432 | Disposable dust bag for vacuum cleaners and the like | — | 1989-10-31 |
| 4847944 | Vacuum cleaning with powered brush roll | — | 1989-07-18 |
| 4829624 | Apparatus for producing cleaning suds | Stanley E. Grzywna, Thomas E. Baird | 1989-05-16 |
| D294755 | Container for vacuum cleaner accessories | Juergen O. Rathgeber, J. Parks Newby, Sr. | 1988-03-15 |
| 4683607 | Vacuum cleaner accessory bracket | William E. Bartasevich | 1987-08-04 |
| D291129 | Vacuum cleaner bracket | William E. Bartasevich | 1987-07-28 |