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For the Inventor, By the Inventor

Flat Rock, MI, United States of America

Butlerbilt L.l.c.


USPTO Granted Patents = 3

Forward Citations = 1

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2 inventors (with patents filed for the assignee):

goldMedal John F Lambert (3 out of 15 patents)

silverMedal Michael G Butler (3 out of 14 patents)


3 patents:

1. 11769992 - Hydraulic displacement mechanism and method of use (2023-09-26),
2. 11661715 - Manhole guard and attachable winch mount (2023-05-30),
3. 11349285 - Cut resistant knife (2022-05-31),
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USPTO Data Jan 1 1976 - Sep 15 2026

3 Patents

#2 in Flat Rock, MI

#2,489 in Michigan

#73,706 in US

Flat Rock, MI (US)
Flat Rock, MI, United States of America

Butlerbilt L.l.c.

Forward Citations = 1

2 inventors:

goldMedal John F Lambert (3 out of 15 patents)

silverMedal Michael G Butler (3 out of 14 patents)

Please report any incorrect information to [email protected]
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