Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4928346 | Hand-held vacuum cleaner with power brush | Burton E. Gerke, Jr., Michael E. Bitzel, Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more | 1990-05-29 | $3,569,000 |
| 4841594 | Cordless vacuum cleaner with power brush | Burton E. Gerke, Jr., Michael E. Bitzel, Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more | 1989-06-27 | $3,540,000 |
| 4835409 | Corded/cordless dual-mode power-operated device | Pradeep M. Bhagwat, Richard T. Walter | 1989-05-30 | $1,803,000 |
| 4835410 | Dual-mode corded/cordless system for power-operated devices | Pradeep M. Bhagwat, Richard T. Walter | 1989-05-30 | $1,803,000 |