For the Inventor, By the Inventor

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West Midlands, United Kingdom

Exotech Limited

USPTO Granted Patents = 3

Trademarks = 2

Forward Citations = 22

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4 inventors (with patents filed for the assignee):

John A Hirst (1 out of 2 patents)

Samuel Schalkowsky (1 out of 9 patents)

Louis L Clipp (1 out of 1 patent)

4. Sidney Weiser (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 4909685 - Fastener, power tool for use with same and method tightening the fastener (1990-03-20),

2. 4241996 - Apparatus for measuring the quality of optical equipment (1980-12-30),

3. 4053110 - Shock press (1977-10-11),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#22 in West Midlands

#4,881 in United Kingdom

West Midlands, United Kingdom

Exotech Limited

Forward Citations = 22

4 inventors:

John A Hirst (1 out of 2 patents)

Samuel Schalkowsky (1 out of 9 patents)

Louis L Clipp (1 out of 1 patent)

4. Sidney Weiser (1 out of 2 patents)

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