For the Inventor, By the Inventor

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Dayton, OH, United States of America

Robbins & Myers, Inc.

USPTO Granted Patents = 15

Trademarks = 5

Forward Citations = 262

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18 inventors (with patents filed for the assignee):

Alan G Wild (4 out of 4 patents)

Kamran Z Mirza (2 out of 2 patents)

Richard A Pearce (1 out of 48 patents)

4. Steven L Cunningham (1 out of 1 patent)

5. David D Dean (1 out of 2 patents)

6. Michael T Romanyszyn, Jr (1 out of 1 patent)

7. Sheldon S Chang (1 out of 4 patents)

8. David J Larkins (1 out of 2 patents)

9. John A Millington (1 out of 1 patent)

10. Thomas D Monroe (1 out of 1 patent)

11. Charles A Lawton (1 out of 1 patent)

12. Richard J Thomas (1 out of 1 patent)

13. Joan S Foughty (1 out of 1 patent)

14. William J Leitch (1 out of 1 patent)

15. Donald L Dover (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 6120267 - Progressing cavity pump including a stator modified to improve material (2000-09-19),

2. 5820354 - Cascaded progressing cavity pump system (1998-10-13),

3. 5803601 - Horizontal flow generation system (1998-09-08),

4. 5722820 - Progressing cavity pump having less compressive fit near the discharge (1998-03-03),

5. 5688114 - Progressing cavity pumps with split extension tubes (1997-11-18),

6. 5303933 - Shut-off seal for a rotatable shaft (1994-04-19),

7. 5108273 - Helical metering pump having different sized rotors (1992-04-28),

8. 4639200 - Sealing apparatus for a gear ball joint (1987-01-27),

9. 4513994 - Ceiling fan and outlet box support (1985-04-30),

10. 4511310 - Ceiling fan blade isolation (1985-04-16),

11. 4475872 - Water pump and gear box therefor (1984-10-09),

12. D262570 - Ceiling fan (1982-01-05),

13. 4112786 - Boltless housing for gear heads and the like (1978-09-12),

14. 4055113 - Ventilator apparatus (1977-10-25),

15. 4025833 - Torque demand thermal switch (1977-05-24),

Robbins & Myers, Inc. is a global leader in providing highly engineered, application-critical equipment and systems for the oil and gas, chemical, industrial, pharmaceutical, and defense industries. With a legacy of innovation and quality dating back to 1878, Robbins & Myers continues to deliver cutting-edge solutions to meet the needs of their diverse customer base.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

15 Patents

#37 in Dayton, OH

#843 in Ohio

#20,443 in US

#38,743 in the World

Dayton, OH, United States of America

Robbins & Myers, Inc.

Forward Citations = 262

18 inventors:

Alan G Wild (4 out of 4 patents)

Kamran Z Mirza (2 out of 2 patents)

Richard A Pearce (1 out of 48 patents)

4. Steven L Cunningham (1 out of 1 patent)

5. David D Dean (1 out of 2 patents)

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