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Mount Gilead, OH, United States of America

Hpm Corporation

USPTO Granted Patents = 39

Trademarks = 1

Forward Citations = 502

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23 inventors (with patents filed for the assignee):

George A Kruder (10 out of 12 patents)

William N Calland (5 out of 5 patents)

Thomas G Bishop (5 out of 8 patents)

4. Robert E Nunn (5 out of 6 patents)

5. Stephen T Takashima (3 out of 3 patents)

6. John C Medici, Jr (3 out of 3 patents)

7. Bruno J Stillhard (3 out of 3 patents)

8. Donald W Staiger (3 out of 4 patents)

9. Ronald Siegrist (2 out of 8 patents)

10. James H Perkins (2 out of 2 patents)

11. Charles C Treisch, Jr (2 out of 2 patents)

12. Howard E Radel (2 out of 2 patents)

13. Gary L Myers (2 out of 3 patents)

14. William T Flickinger (2 out of 3 patents)

15. Larry A Rosenbaum (2 out of 3 patents)

39 patents: Sort by Forward Citations

1. 6234659 - Surge suppressor for vented injection molding machine screw (2001-05-22),

2. 6179600 - Process and device for hydraulic drive of injection molding machines (2001-01-30),

3. 6132075 - Multichannel wave screw with a slush channel barrier section (2000-10-17),

4. 6056430 - Plasticating apparatus having a multichannel wave screw with a cross (2000-05-02),

5. 5565224 - Electric injection molding machine (1996-10-15),

6. 5529478 - Device for hydraulic drive of injection molding machines (1996-06-25),

7. 5397526 - Method for reconfiguring finishing rolls in a plastic sheet fabrication (1995-03-14),

8. 5375992 - Triple channel wave screw (1994-12-27),

9. 5219590 - Triple channel wave screw (1993-06-15),

10. 5035509 - Multi-channel extrusion screw with a zig-zag undercut barrier (1991-07-30),

11. 4997358 - Apparatus for reconfiguring finishing rolls in a plastic sheet (1991-03-05),

12. 4925313 - Mixing screw for extrusion and injection molding (1990-05-15),

13. 4886106 - Die cast machine with a turret (1989-12-12),

14. 4850217 - Adaptive process control for injection molding (1989-07-25),

15. 4816197 - Adaptive process control for injection molding (1989-03-28),

HPM Corporation is a leading provider of innovative technology solutions for various industries. With a strong focus on research and development, HPM offers a wide range of products and services including software development, hardware design, and system integration. Our team of experts is dedicated to delivering cutting-edge solutions that address the unique needs of our clients. Visit our website to learn more about our offerings and how we can help your business thrive.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

39 Patents

#1 in Mount Gilead, OH

#350 in Ohio

#8,548 in US

#16,960 in the World

Mount Gilead, OH, United States of America

Hpm Corporation

Forward Citations = 502

23 inventors:

George A Kruder (10 out of 12 patents)

William N Calland (5 out of 5 patents)

Thomas G Bishop (5 out of 8 patents)

4. Robert E Nunn (5 out of 6 patents)

5. Stephen T Takashima (3 out of 3 patents)

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