For the Inventor, By the Inventor

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San Diego, CA, United States of America

T-systems International, Inc.

USPTO Granted Patents = 19

Trademarks = 1

Forward Citations = 573

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14 inventors (with patents filed for the assignee):

Michael DeFrank (11 out of 11 patents)

David L Teegardin (6 out of 6 patents)

David Marchetti (5 out of 5 patents)

4. Scott K Avenell (3 out of 3 patents)

5. Harold Daigle (3 out of 3 patents)

6. Mark Huntley (2 out of 2 patents)

7. Que Tran (2 out of 2 patents)

8. Michael P De Frank (2 out of 2 patents)

9. Shawn Shirvan (2 out of 2 patents)

10. Wayne Hackman (2 out of 2 patents)

11. David Giuntoli (1 out of 8 patents)

12. Jaime Cabahug (1 out of 1 patent)

13. Davies Allport (1 out of 3 patents)

14. William F Holzer (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 6936126 - Method of manufacture of a drip irrigation hose (2005-08-30),

2. 6464816 - Method and apparatus for making a drip irrigation hose (2002-10-15),

3. 6308902 - Drip irrigation hose with emitters having different discharge rates (2001-10-30),

4. RE37097 - Method for splicing drip irrigation hoses using splicing means internal to the hoses (2001-03-20),

5. 6183584 - Method for splicing drip irrigation hoses using two member splicing coupling (2001-02-06),

6. 6116523 - Pressure-compensating drip irrigation hose and method for its manufacture (2000-09-12),

7. 6015102 - External emitter for drip irrigation hose (2000-01-18),

8. 5957391 - Drip irrigation hose with self-cleaning inlet and method for its (1999-09-28),

9. 5865377 - Drip irrigation hose and method for its manufacture (1999-02-02),

10. 5855324 - Drip irrigation hose and method of its manufacture (1999-01-05),

11. 5722601 - Drip irrigation hose and method of its manufacture (1998-03-03),

12. 5690769 - Method for splicing drip irrigation hoses using splicing means internal (1997-11-25),

13. 5634595 - Drip irrigation hose and method for its manufacture (1997-06-03),

14. 5522551 - Drip irrigation hose and method for its manufacture (1996-06-04),

15. 5458712 - Process for forming drip irrigation hose with pressure compensation (1995-10-17),

T-Systems International, Inc. is a leading global IT services and consulting company. With a focus on digital transformation and cloud services, T-Systems helps companies navigate the complexities of modern technology to drive innovation and growth. Their services include cloud migration, cybersecurity, data analytics, and IoT solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

19 Patents

#297 in San Diego, CA

#3,975 in California

#16,627 in US

#31,712 in the World

San Diego, CA, United States of America

T-systems International, Inc.

Forward Citations = 573

14 inventors:

Michael DeFrank (11 out of 11 patents)

David L Teegardin (6 out of 6 patents)

David Marchetti (5 out of 5 patents)

4. Scott K Avenell (3 out of 3 patents)

5. Harold Daigle (3 out of 3 patents)

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