Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648567 | Tool-free collet tightener | Robert A. Berry, Allen Brelsford, John Louis McKibben | 2003-11-18 |
| 6350087 | Tool-free collet tightener | Robert A. Berry, Allen Brelsford, John Louis McKibben | 2002-02-26 |
| 5526596 | Electric iron with storage base and method of storing the iron | Edward M. Kubicz, David Jalbert, Kenneth H. Patrick, Michael D. Morrissey, Arthur H. Freeman | 1996-06-18 |
| 4947514 | Internal contact for a charging circuit | Burton E. Gerke, Jr., Robert Kubicko, Charles Z. Krasznai | 1990-08-14 |
| 4928346 | Hand-held vacuum cleaner with power brush | Donald E. Elson, Burton E. Gerke, Jr., Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more | 1990-05-29 |
| 4920606 | Electrical power circuit for a vacuum cleaner | Burton E. Gerke, Jr., Robert Kubicko, Charles Z. Krasznai | 1990-05-01 |
| 4912805 | Dual-purpose rotating brush for vacuum cleaner | Charles Z. Krasznai, William D. Ryckman, Jr. | 1990-04-03 |
| 4841594 | Cordless vacuum cleaner with power brush | Donald E. Elson, Burton E. Gerke, Jr., Bruce A. Wilder, Stanley J. Rodowsky, Jr., William R. Lessig, III +2 more | 1989-06-27 |
| 4385276 | Mounting of semiconductor sensing means for an electromagnetic tachometer in a portable electric tool | — | 1983-05-24 |