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Forward Citations = 236

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8 inventors (with patents filed for the assignee):

Ronald Ballantyne (7 out of 7 patents)

Leon Malashenko (5 out of 5 patents)

Derek Foster (2 out of 2 patents)

4. Martin Murray (1 out of 3 patents)

5. Andrew Ferguson (1 out of 1 patent)

6. Margus Tae (1 out of 1 patent)

7. Colin Rich (1 out of 1 patent)

8. James Hepburn (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 5237916 - Regenerative hydraulic cylinders with internal flow paths (1993-08-24),

2. 5156782 - Maintaining press platens in parallel relationship (1992-10-20),

3. 5088400 - Adjusting press platen clearance (1992-02-18),

4. 4862821 - Mechanism for tensioning a moving chain (1989-09-05),

5. 4841898 - Anchoring system for floating structure (1989-06-27),

6. 4836125 - Anchoring system for floating structure (1989-06-06),

7. 4828474 - Hydraulic cylinder device for platen spacing indication and control (1989-05-09),

8. 4819555 - Press with adjustable platen spacing (1989-04-11),

9. 4759280 - Hydraulic press with adjustable platen clearance (1988-07-26),

10. 4722293 - Integrated winch and windlass (1988-02-02),

11. 4694744 - Hydraulic press without conventional side slabs and cross-head (1987-09-22),

12. 4690049 - Hydraulic press with side slab guided upper platen (1987-09-01),

13. 4476801 - Mooring device (1984-10-16),

14. 3980252 - Wire rope spooling mechanism (1976-09-14),

John T. Hepburn, Limited is a leading construction company specializing in residential and commercial projects. With over 20 years of experience, we provide high-quality construction services, including renovations, new builds, and design-build projects. Our team of skilled professionals is dedicated to delivering projects on-time and within budget. Contact us today to discuss your next construction project.

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USPTO Data Jan 1 1976 - Dec 16 2025

14 Patents

#54 in Mississauga

#1,015 in Canada

#40,906 in the World

Mississauga, Canada

John T. Hepburn, Limited