Patents per Year
Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 9602902 | Speaker mounting assembly | William Kieltyka, Allen Boothroyd | 2017-03-21 | |
| 7883065 | Mounting bracket | — | 2011-02-08 | |
| 7780135 | Speaker mounting system | Ernest Ketterer | 2010-08-24 | |
| D531164 | Self-amplified loudspeaker | Isaac Ferstenberg, Berta Grushko | 2006-10-31 | |
| 6110281 | Preconditioning means for non-woven rolls | James S. Ruscyk | 2000-08-29 | |
| 5133646 | Antisurge apparatus for eliminating surges in compressed air output by a compressor | — | 1992-07-28 | $1,596,000 |
| 4867195 | Vapor pressure control system | Michael R. Blewett | 1989-09-19 | $835,000 |
| 4617958 | Control valve | William E. Seidel, Albert L. Markunas | 1986-10-21 | $2,035,000 |
| 4610265 | Turbine compressor stall recovery valve | — | 1986-09-09 | $918,000 |
| 4519480 | Brake lever retaining bracket | — | 1985-05-28 |