For the Inventor, By the Inventor

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Kalamazoo, MI, United States of America

Roto-finish Company, Inc.

USPTO Granted Patents = 40

Trademarks = 14

Forward Citations = 268

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8 inventors (with patents filed for the assignee):

Gunther W Balz (27 out of 27 patents)

Gary L McNeil (8 out of 10 patents)

Steven James Carpenter (2 out of 3 patents)

4. Henry L Upjohn, Ii (1 out of 2 patents)

5. Jeremy Paul Hammond (1 out of 2 patents)

6. Melvin M Baevsky (1 out of 1 patent)

7. Kyle Elmblad (1 out of 1 patent)

8. Bruno E Unzens (1 out of 1 patent)

Core Competencies:

Surface Treatment

Polishing Devices

Vibratory Finishers

Centrifugal Finishing

Finishing Compositions

Corrosion-Inhibiting Compounds

Self-Separating Machines

Multistage Finishing

Abrasive Lining

Finishing Media

Gyrational Motion

Reciprocal Finishing

40 patents: Sort by Forward Citations

1. 7063593 - Apparatus and process for surface treating interior of workpiece (2006-06-20),

2. 6960116 - Wheel polishing device (2005-11-01),

3. 6808439 - Vibratory finisher with blasting nozzle (2004-10-26),

4. 5795373 - Finishing composition for, and method of mass finishing (1998-08-18),

5. 5284593 - Nonchelating metal finishing compounds (1994-02-08),

6. 5012620 - Centrifugal finishing apparatus embodying improved seal and method (1991-05-07),

7. 4884372 - Centrifugal finishing apparatus embodying improved seal and method (1989-12-05),

8. 4693037 - Multistage finishing device and method (1987-09-15),

9. 4676027 - Vibratory finishing chamber (1987-06-30),

10. 4656718 - Method of producing a finishing chamber for a vibratory finishing machine (1987-04-14),

11. 4630405 - Finishing chamber and finishing machine comprising the same (1986-12-23),

12. 4630401 - Finishing machine and method (1986-12-23),

13. 4499692 - Dual motion vibratory finishing machine and method (1985-02-19),

14. 4480411 - Finishing chamber with readily-removable lining and means for assisting (1984-11-06),

15. 4461122 - Finishing apparatus with automatically-variable vibrogyratory intensity (1984-07-24),

Founded in 1957, Roto-finish Company, Inc. is a leading manufacturer of surface finishing and deburring equipment. With a wide range of products and services, we provide innovative solutions for metal working, automotive, aerospace, and other industries. Our expertise includes vibratory and centrifugal finishing machines, abrasive flow machining systems, and media options. We are committed to delivering high-quality equipment, exceptional customer service, and continuous improvement through research and development.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

40 Patents

#10 in Kalamazoo, MI

#318 in Michigan

#8,345 in US

#16,557 in the World

Kalamazoo, MI, United States of America

Roto-finish Company, Inc.

Forward Citations = 268

8 inventors:

Gunther W Balz (27 out of 27 patents)

Gary L McNeil (8 out of 10 patents)

Steven James Carpenter (2 out of 3 patents)

4. Henry L Upjohn, Ii (1 out of 2 patents)

5. Jeremy Paul Hammond (1 out of 2 patents)

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