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Trademarks = 2

Forward Citations = 179

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6 inventors (with patents filed for the assignee):

Harold E McCormick (11 out of 14 patents)

Herbert F Prasse (2 out of 3 patents)

William F Ott (2 out of 2 patents)

4. Donald J Mayhew (2 out of 2 patents)

5. Jon W Martin (1 out of 22 patents)

6. Roger L Berkbigler (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 4305348 - Seal for an internal combustion engine (1981-12-15),

2. 4299401 - Piston ring and method of making same (1981-11-10),

3. 4251599 - Ferrous metal body coated with an alloy formed by an iron/silicon (1981-02-17),

4. 4248440 - Titania-alumina-yttria piston ring facing (1981-02-03),

5. 4214762 - Rolled metal piston ring (1980-07-29),

6. 4182579 - Retaining ring (1980-01-08),

7. 4115959 - Method for increasing the life of silicon carbide grinding wheels (1978-09-26),

8. 4085490 - Method of making a rolled metal piston ring (1978-04-25),

9. 4079949 - Integral spring piston ring (1978-03-21),

10. 4040637 - Low friction balanced piston ring (1977-08-09),

11. 4032672 - Method for coating parts (1977-06-28),

12. 4024617 - Method of applying a refractory coating to metal substrate (1977-05-24),

Ramsey Corporation is a leading provider of industrial equipment and services. With a strong focus on quality and customer satisfaction, we offer a wide range of products including conveyor systems, material handling equipment, and automation solutions. Our experienced team is dedicated to providing innovative and cost-effective solutions to meet our customers' needs.

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Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

12 Patents

#163 in St. Louis, MO

#365 in Missouri

#25,508 in US

#48,055 in the World

St. Louis, MO, United States of America

Ramsey Corporation