For the Inventor, By the Inventor

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Lamar, MO, United States of America

O'sullivan Trenchless Installation Services

USPTO Granted Patents = 2

CIPO Patents = 1

Forward Citations = 28

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6 inventors (with patents filed for the assignee):

Larry W Kiest, Jr (2 out of 112 patents)

Jason Bartlett (2 out of 2 patents)

Thomas M O'Sullivan, Iii (2 out of 2 patents)

4. Raymond L Greek (2 out of 2 patents)

5. Timothy L Back (2 out of 2 patents)

6. Donald L Betzold (2 out of 2 patents)

7. Larry Kiest (3 patents)

8. Raymond Greek (0 patent)

9. Tim Back (0 patent)

10. Don Betzold (0 patent)

11. Thomas M O'sullivan Iii (0 patent)

2 patents: Sort by Forward Citations

1. 8721216 - Method of repairing a manhole chimney using a stretchable sleeve (2014-05-13),

2. 7670086 - Method of repairing a manhole chimney using a stretchable sleeve (2010-03-02),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#4 in Lamar, MO

#1,292 in Missouri

#92,695 in US

Lamar, MO, United States of America

O'sullivan Trenchless Installation Services

Forward Citations = 28

6 inventors:

Larry W Kiest, Jr (2 out of 112 patents)

Jason Bartlett (2 out of 2 patents)

Thomas M O'Sullivan, Iii (2 out of 2 patents)

4. Raymond L Greek (2 out of 2 patents)

5. Timothy L Back (2 out of 2 patents)

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