Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10820083 | Acoustic assembly having an acoustically permeable membrane | John B. Szczech, Sandra F. Vos, Yu Du, Jose Salazar, Charles King | 2020-10-27 |
| 9872116 | Apparatus and method for detecting earphone removal and insertion | Sarmad Qutub | 2018-01-16 |
| 9712913 | Acoustic sound adsorption material having attached sphere matrix | Christian Lembacher, Heribert Bauer | 2017-07-18 |
| 8798304 | Acoustic valve mechanisms | Thomas E. Miller, Joseph Heidenreich, Ryan S. Scott, Daniel J. Repplinger, James S. Collins | 2014-08-05 |
| 8594347 | Microphone having multiple transducer elements | Michael Abry, Peter V. Loeppert | 2013-11-26 |
| 8170244 | Microphone having multiple transducer elements | Michael Abry, Peter V. Loeppert | 2012-05-01 |
| 7556568 | Sports equipment swing training apparatus | — | 2009-07-07 |
| 6991554 | Sports equipment swing training apparatus and method of use | — | 2006-01-31 |
| 5442931 | Simplified adsorption heat pump using passive heat recuperation | William M. Worek, Weixiang Zheng | 1995-08-22 |
| 5291942 | Multiple stage sorption and desorption process and apparatus | — | 1994-03-08 |
| 5255534 | System and process for operating and absorption cycle around a crystallization curve of the solution | — | 1993-10-26 |
| 5216891 | Solution flows in direct expansion lithium bromide air conditioner/heater | — | 1993-06-08 |
| 4736871 | Liquid measuring dispenser | Dorian E. Luciani | 1988-04-12 |