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Trademarks = 1

Forward Citations = 1,418

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6 inventors (with patents filed for the assignee):

John C Schumacher (4 out of 6 patents)

Joseph C McMenamin (2 out of 3 patents)

Andre Lagendijk (2 out of 9 patents)

4. Joseph C Schumacher (1 out of 1 patent)

5. Lloyd M Woerner (1 out of 1 patent)

6. Edward B Moore (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 4436674 - Vapor mass flow control system (1984-03-13),

2. 4393013 - Vapor mass flow control system (1983-07-12),

3. 4318942 - Process for producing polycrystalline silicon (1982-03-09),

4. 4298037 - Method of shipping and using semiconductor liquid source materials (1981-11-03),

5. 4227291 - Energy efficient process for continuous production of thin semiconductor (1980-10-14),

6. 4140735 - Process and apparatus for bubbling gas through a high purity liquid (1979-02-20),

7. 4134514 - Liquid source material container and method of use for semiconductor (1979-01-16),

8. 4084024 - Process for the production of silicon of high purity (1978-04-11),

J. C. Schumacher Co. is a leading provider of industrial equipment solutions, specializing in the design, manufacturing, and installation of custom material handling systems. With over 50 years of experience, we have built a reputation for delivering high-quality products and exceptional customer service. Our team of experts is dedicated to meeting the unique needs of each client, offering innovative solutions to improve efficiency and productivity. Visit our website to learn more about our range of services and custom solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

8 Patents

#14 in Oceanside, CA

#8,302 in California

#34,944 in US

Oceanside, CA, United States of America

J. C. Schumacher Co.