For the Inventor, By the Inventor

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Walnut Creek, CA, United States of America

Zehntel, Inc.

USPTO Granted Patents = 13

Forward Citations = 357

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14 inventors (with patents filed for the assignee):

Douglas W Raymond (4 out of 17 patents)

Ernest C Woods, Jr (2 out of 2 patents)

Ronald N Borrelli (2 out of 2 patents)

4. Robert G Jacobson (2 out of 3 patents)

5. William M Riesenberg (1 out of 2 patents)

6. John B Burnett (1 out of 1 patent)

7. Eugene H Breniman (1 out of 2 patents)

8. Thomas C Garrett (1 out of 1 patent)

9. Gerald W Petersen (1 out of 1 patent)

10. Graeme R Kinsey (1 out of 1 patent)

11. Pat Fowler (1 out of 1 patent)

12. Nicholas Winfield (1 out of 1 patent)

13. Jean F Davaut (1 out of 1 patent)

14. Barbara K McElfresh (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 4967147 - Circuit tester having mechanical fingers and pogo probes for causing (1990-10-30),

2. 4870354 - Apparatus for contacting a printed circuit board with an array of test (1989-09-26),

3. 4856001 - Digital in-circuit tester having channel-memory earse-preventer (1989-08-08),

4. 4791359 - Method of detecting possibly electrically-open connections between (1988-12-13),

5. 4593804 - Apparatus for guiding a circuit board onto a testing location on a test (1986-06-10),

6. 4573009 - Printed circuit board test fixture with flexion means for providing (1986-02-25),

7. 4500993 - In-circuit digital tester for testing microprocessor boards (1985-02-19),

8. 4439858 - Digital in-circuit tester (1984-03-27),

9. 4339819 - Programmable sequence generator for in-circuit digital testing (1982-07-13),

10. 4216539 - In-circuit digital tester (1980-08-05),

11. 4070565 - Programmable tester method and apparatus (1978-01-24),

12. 3943439 - Capacitor test apparatus and method (1976-03-09),

13. 3931506 - Programmable tester (1976-01-06),

Zehntel, Inc. is a leading technology company specializing in providing innovative solutions for businesses. Their expertise includes software development, data analytics, and consulting services. With a focus on delivering high-quality, customized solutions, Zehntel helps organizations streamline their operations and improve efficiency. Through a combination of cutting-edge technology and industry expertise, Zehntel is dedicated to helping their clients achieve their goals and stay ahead of the competition.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

13 Patents

#9 in Walnut Creek, CA

#5,648 in California

#23,808 in US

#44,950 in the World

Walnut Creek, CA, United States of America

Zehntel, Inc.

Forward Citations = 357

14 inventors:

Douglas W Raymond (4 out of 17 patents)

Ernest C Woods, Jr (2 out of 2 patents)

Ronald N Borrelli (2 out of 2 patents)

4. Robert G Jacobson (2 out of 3 patents)

5. William M Riesenberg (1 out of 2 patents)

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