For the Inventor, By the Inventor

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Mount Clemens, MI, United States of America

Hydra-Lock Corporation

USPTO Granted Patents = 16

Trademarks = 6

Forward Citations = 160

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9 inventors (with patents filed for the assignee):

William M Andre (8 out of 9 patents)

Robert Laube (5 out of 5 patents)

John V Bartolone (2 out of 2 patents)

4. Bruce W Irwin, Sr (2 out of 3 patents)

5. Eugene R Andre, Sr (2 out of 3 patents)

6. Dan J O'Lear (1 out of 1 patent)

7. Raymond Smith (1 out of 21 patents)

8. Richard A Dietz (1 out of 1 patent)

9. John P Schmeisl (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 11534839 - Hydrostatically actuated workholding apparatus (2022-12-27),

2. 8944438 - Fluid-actuated workholder with a collet driven by a soft and thin bladder (2015-02-03),

3. 8800997 - Stepped collet (2014-08-12),

4. 8585061 - Hydrostatically actuated workholding apparatus with high expansion and recovery sleeve (2013-11-19),

5. 7967300 - Hydrostatically actuated workholding apparatus with high expansion and recovery sleeve (2011-06-28),

6. 7469907 - Mechanically actuated workpiece holder including a plastic collet (2008-12-30),

7. 7374178 - Workpiece holder (2008-05-20),

8. 7331583 - Workpiece holder with a multi-piece bladder (2008-02-19),

9. 7147232 - Workpiece holder (2006-12-12),

10. 6077003 - Tool holder (2000-06-20),

11. 6015154 - Large displacement hydrostatic workpiece holder (2000-01-18),

12. 6000687 - Actuator for hydraulic tool holder (1999-12-14),

13. 5944325 - Mechanically actuated hydrostatic tool holder (1999-08-31),

14. 5516243 - Reamer chuck and tool expander (1996-05-14),

15. 5286042 - Tool holder with centering adjustment (1994-02-15),

Hydra-Lock Corporation, based in Mount Clemens, Michigan, specializes in advanced hydraulic locking mechanisms and related technologies. The company focuses on providing innovative solutions for various industries, including automotive, aerospace, and industrial applications. With a commitment to engineering excellence, Hydra-Lock develops products that enhance safety and efficiency in complex systems. Their expertise in hydraulic systems positions them as a key player in the field, catering to a diverse range of client needs.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#1 in Mount Clemens, MI

#713 in Michigan

#19,907 in US

#37,788 in the World

Mount Clemens, MI, United States of America

Hydra-Lock Corporation

Forward Citations = 160

9 inventors:

William M Andre (8 out of 9 patents)

Robert Laube (5 out of 5 patents)

John V Bartolone (2 out of 2 patents)

4. Bruce W Irwin, Sr (2 out of 3 patents)

5. Eugene R Andre, Sr (2 out of 3 patents)

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