For the Inventor, By the Inventor

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Ansonia, CT, United States of America

Farrel Corporation

USPTO Granted Patents = 26

CIPO Patents = 2

EPO Patents = 2

Trademarks = 11

Forward Citations = 242

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34 inventors (with patents filed for the assignee):

Douglas E Mosher (8 out of 8 patents)

Michael R Kearney (5 out of 5 patents)

Frank J Borzenski (4 out of 4 patents)

4. Narku O Nortey (4 out of 4 patents)

5. William H Swilling, Jr (4 out of 4 patents)

6. Stuart A Sardinskas (3 out of 3 patents)

7. Joseph R Piccolo, Sr (3 out of 3 patents)

8. Douglas V Poscich (2 out of 4 patents)

9. Lefteris N Valsamis (2 out of 12 patents)

10. Matthew Bonito (1 out of 1 patent)

11. Stephen E Peterson (1 out of 1 patent)

12. John Neugebauer (1 out of 1 patent)

13. Lefteris Valsamis (1 out of 1 patent)

14. Hans Baurmeister (1 out of 1 patent)

15. Walter Rapetski (1 out of 1 patent)

26 patents: Sort by Forward Citations

1. 9709172 - Rotor shaft seal assembly (2017-07-18),

2. 7404664 - Keel type ram for use in internal batch mixers with tangential rotors (2008-07-29),

3. 6494607 - Four wing, non-intermeshing rotors for synchronous drive to provide improved dispersive and distributive mixing in internal batch mixers (2002-12-17),

4. 5526566 - Method of making rotors for two-rotor continuous mixers and method of (1996-06-18),

5. 5487602 - Multi-screw, extrusion-compounding machine with modular mixing elements (1996-01-30),

6. 5480252 - Coupling mechanism for quickly axially aligning rotor to journals (1996-01-02),

7. 5415492 - Coupling mechanism for quickly axially aligning rotor to journals (1995-05-16),

8. 5382089 - Convenient access for clean-out and maintenance of mixing chamber and (1995-01-17),

9. 5273356 - Rotor zone cooling method and apparatus for rotors in continuous mixers (1993-12-28),

10. 5267788 - Multi-screw, continuous mixing and kneading machine with polygonal (1993-12-07),

11. 5261740 - One-piece cylindrical extruder barrel assembled with eccentric (1993-11-16),

12. 5259688 - Quick-disconnect couplings for three-piece rotors in continuous mixers (1993-11-09),

13. 5259671 - Greased journal bearing assemblies with thermal isolation and cooling in (1993-11-09),

14. 5180225 - Rotor zone cooling apparatus for rotors in continuous mixers of plastic (1993-01-19),

15. 5143734 - Adjustable converging extruder hopper (1992-09-01),

Farrel Corporation is a leading manufacturer of mixing and processing equipment for the plastics, rubber, and chemical industries. With over 170 years of experience, Farrel has built a strong reputation for producing high-quality machinery and providing innovative solutions to its customers. Their extensive product portfolio includes mixers, extruders, mills, calenders, and other specialized equipment. Farrel Corporation is committed to delivering reliable and advanced technology to meet the evolving needs of its global customer base.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

26 Patents

#1 in Ansonia, CT

#316 in Connecticut

#12,831 in US

#24,720 in the World

Ansonia, CT, United States of America

Farrel Corporation

Forward Citations = 242

34 inventors:

Douglas E Mosher (8 out of 8 patents)

Michael R Kearney (5 out of 5 patents)

Frank J Borzenski (4 out of 4 patents)

4. Narku O Nortey (4 out of 4 patents)

5. William H Swilling, Jr (4 out of 4 patents)

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