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Forward Citations = 166

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10 inventors (with patents filed for the assignee):

Thomas E Brown (2 out of 9 patents)

Henry L Valentine (2 out of 2 patents)

Louis A Valentine (2 out of 2 patents)

4. Cleve L Lee (2 out of 2 patents)

5. Ralph L Hoffmann (2 out of 2 patents)

6. Richard T Galbierz (1 out of 7 patents)

7. Walter J Boyer (1 out of 1 patent)

8. Ronald A Serati (1 out of 1 patent)

9. John Weiss (1 out of 3 patents)

10. Robert D LaMarsh (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. D280227 - Exercise cycle (1985-08-20),

2. 4402503 - Exercise bicycle (1983-09-06),

3. 4364557 - Work control apparatus in an exerciser (1982-12-21),

4. 4289309 - Work control assembly in an exerciser (1981-09-15),

5. 4265079 - Rigid grass catcher (1981-05-05),

6. 4235436 - Work control apparatus for an exerciser (1980-11-25),

7. 4217747 - Lawn mower grass catcher assembly (1980-08-19),

8. 4206914 - Work control apparatus in an exerciser (1980-06-10),

9. D251747 - Frame for exerciser (1979-05-01),

10. 4151702 - Mower grass catcher for rear discharge (1979-05-01),

11. 4079931 - Exercycle frame (1978-03-21),

12. 3962852 - Grass catcher and deflector assembly (1976-06-15),

Perfection Manufacturing Company is a leading manufacturer of precision machined parts and components. With over 50 years of experience, we specialize in producing high-quality products for various industries including aerospace, automotive, and defense. Our state-of-the-art facilities and highly skilled team ensure that we meet the most stringent standards and deliver superior results to our customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#145 in St. Louis, MO

#342 in Missouri

#24,788 in US

#46,688 in the World

St. Louis, MO, United States of America

The Perfection Manufacturing Company