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Vista, CA, United States of America

Tempo Research Corporation

USPTO Granted Patents = 16

Trademarks = 5

Forward Citations = 167

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13 inventors (with patents filed for the assignee):

Charles H Wissman (7 out of 10 patents)

William Cory Wood (3 out of 7 patents)

James W Thompson (2 out of 34 patents)

4. Thomas W Durston (2 out of 2 patents)

5. Robert G Crick (2 out of 4 patents)

6. Ronald J Larrick (1 out of 4 patents)

7. William Crawford Randle (1 out of 4 patents)

8. Phillip Frederick Kochan (1 out of 2 patents)

9. Dmitry Berger (1 out of 4 patents)

10. Paul L Whalley (1 out of 1 patent)

11. Paul R Siglinger (1 out of 7 patents)

12. Arthur E Oberg (1 out of 3 patents)

13. John N Rodittis (1 out of 2 patents)

16 patents: Sort by Forward Citations

1. 7170411 - Method of and system for rapidly locating all passive underground electronic marker types (2007-01-30),

2. 7095231 - Method of and system for locating a single passive underground electronic marker type that distinguishes false indication caused by other marker types (2006-08-22),

3. 6946850 - Method and apparatus for filtering unwanted noise while amplifying a desired signal (2005-09-20),

4. 6670837 - Time domain reflectometer with digitally generated variable width pulse output (2003-12-30),

5. 6621562 - Time domain reflectometer with wideband dual balanced duplexer line coupling circuit (2003-09-16),

6. 6263047 - Apparatus and method for characterizing the loading pattern of a telecommunications transmission line (2001-07-17),

7. 6233558 - Method and apparatus for simultaneous tracing of multiple transmission lines (2001-05-15),

8. 5914608 - Method and apparatus for tracing coaxial cables (1999-06-22),

9. 5751149 - Method and apparatus for high frequency time domain reflectometry (1998-05-12),

10. 5703481 - Apparatus for detecting digital carrier signals on telephone cables (1997-12-30),

11. 5661396 - Method for detecting digital carrier signals on twisted pair (1997-08-26),

12. 5568474 - Ping-pong communication method and apparatus (1996-10-22),

13. 5557651 - Signal generator for tracing multiple transmission lines (1996-09-17),

14. 5552702 - Method and apparatus for detecting digital carrier signals on telephone (1996-09-03),

15. 5302905 - Apparatus and method for detecting and isolating noise-creating (1994-04-12),

Tempo Research Corporation is a leading market research firm specializing in consumer behavior and market trends. With over 20 years of experience, we provide valuable insights and data to help businesses make informed decisions and drive growth. Our customized research solutions help clients stay ahead of the competition and maximize their market potential. Contact us today to learn more about how Tempo Research Corporation can help your business succeed.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

16 Patents

#23 in Vista, CA

#4,763 in California

#19,887 in US

#37,739 in the World

Vista, CA, United States of America

Tempo Research Corporation

Forward Citations = 167

13 inventors:

Charles H Wissman (7 out of 10 patents)

William Cory Wood (3 out of 7 patents)

James W Thompson (2 out of 34 patents)

4. Thomas W Durston (2 out of 2 patents)

5. Robert G Crick (2 out of 4 patents)

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