Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10473727 | Early power failure detection circuit | William John Testin | 2019-11-12 |
| 9729009 | Systems and methods for remotely controlling a wall socket | Darren Fritsch, James Edward McIntyre, Austin Kirchhoff, James Joseph Hartmann, Jeff Seese | 2017-08-08 |
| 9685896 | Stepper motor control and fire detection system | Michael D. Dortch, Larry J. Price, Shaun Greene | 2017-06-20 |
| 9390604 | Fire detection system | Michael D. Dortch, Larry J. Price, Shaun Greene, Bryce Lembke | 2016-07-12 |
| 9356472 | Systems and methods for remotely controlling a wall socket | Darren Fritsch, James Edward McIntyre, Austin Kirchhoff, James Joseph Hartmann, Jeff Seese | 2016-05-31 |
| 8894831 | Printed memory on strip | Michael J. Celentano, Herbert Harttig | 2014-11-25 |
| 7818794 | Data traffic filtering indicator | — | 2010-10-19 |
| 7741828 | Power disturbance detection circuit and method | — | 2010-06-22 |
| 7574494 | User interface for a bi-directional communication system | Mark Mayernick, Peter Polit, Suresh Kumar Natarajan | 2009-08-11 |
| 7184544 | Device and method for detecting presence of service on telephone line | Blaine Edward Ramey | 2007-02-27 |
| 7076530 | Multiple function modem including external memory adapter | Steve Betz | 2006-07-11 |
| 6940970 | Ring boost circuit to extend ringing range of telephone SLICs | — | 2005-09-06 |
| 6304654 | Telephone handset interface with feedback control | — | 2001-10-16 |
| 5901212 | Apparatus for blocking voice band signals when receiving caller identification information for a waiting call | Robert Clair True | 1999-05-04 |
| 5867573 | Telephone handset interface with feedback control | — | 1999-02-02 |
| 5850156 | Processor supervisory circuit and method having increased range of power-on reset signal stability | — | 1998-12-15 |
| 5771285 | Circuit and method for detecting telephone line status and telephone instrument embodying the same | — | 1998-06-23 |
| 5694460 | Circuit and method for reducing common mode interference in telephone instruments | — | 1997-12-02 |
| 5388153 | Apparatus and method for detecting telephone line status | Theodore O. Burger, John A. Karpicke, Donald Marion Keen, Donald R. Means, Thomas Anthony Stahl | 1995-02-07 |
| 5251179 | Apparatus and method for extending battery life | — | 1993-10-05 |
| 5121426 | Loudspeaking telephone station including directional microphone | John Charles Baumhauer, Jr., Jeffrey Phillip McAteer | 1992-06-09 |
| 4980778 | Method for correcting nonuniformities in pixel output level for a line scanner | — | 1990-12-25 |
| 4539552 | Digital-to-analog converter | Paul C. Davis, Raymond G. Jackson, Joseph J. Nahas, Dale H. Nelson, DeWitt G. Ong | 1985-09-03 |
| 4352958 | Electronically-switched multifrequency generator with transducer control | Paul C. Davis, Raymond G. Jackson, Joseph J. Nahas, Dale H. Nelson, DeWitt G. Ong | 1982-10-05 |