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For the Inventor, By the Inventor

Buffalo, NY, United States of America

Derrick Corporation


USPTO Granted Patents = 106



Trademarks = 46

Forward Citations = 695

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29 inventors (with patents filed for the assignee):

goldMedal Keith F Wojciechowski (53 out of 59 patents)

silverMedal James R Colgrove (38 out of 38 patents)

bronzeMedal Christian Newman (33 out of 33 patents)

4.  Michael L Peresan (19 out of 19 patents)

5.  Anthony J Lipa (10 out of 10 patents)

6.  Clifford C Smith (6 out of 6 patents)

7.  Daniel P Jenkins (6 out of 6 patents)

8.  William H Gross (6 out of 6 patents)

9.  Raymond M Kirsch (4 out of 6 patents)

10.  Alex DeMay (4 out of 4 patents)

11.  Kurt Stodolka (4 out of 4 patents)

12.  Mike Peresan (3 out of 3 patents)

13.  John J Bakula (3 out of 25 patents)

14.  Joseph Hozdic (2 out of 2 patents)

15.  Gregory A Kardach (2 out of 2 patents)


Core Competencies:
Vibratory Screening
Smart Solids Control
Static Screening
Compression Apparatuses
Injection Molded Screening
Screen Assemblies
Pre-Screening
Eccentric Vibrator Systems
Deblinding Apparatuses
Thermoplastic Compositions
Flow Division

106 patents:

1. 12491537 - Injection molded screening apparatuses and methods (2025-12-09),
2. 12403504 - Apparatuses, methods, and systems for vibratory screening (2025-09-02),
3. 12403483 - Smart solids control system (2025-09-02),
4. 12318812 - Apparatuses, methods, and systems for vibratory screening (2025-06-03),
5. 12226802 - Static screening system and methods (2025-02-18),
6. 12208419 - Compression apparatuses, systems and methods for screening materials (2025-01-28),
7. 12172191 - Injection molded screening apparatuses and methods (2024-12-24),
8. 12138661 - Method and apparatuses for screening (2024-11-12),
9. 12128445 - Compression apparatuses, systems and methods for screening materials (2024-10-29),
10. 12053800 - Compression apparatuses, systems and methods for screening materials (2024-08-06),
11. 12042822 - Injection molded screening apparatuses and methods (2024-07-23),
12. 11958078 - Systems, apparatuses, and methods for securing screen assemblies (2024-04-16),
13. 11958077 - Compression apparatuses, systems and methods for screening materials (2024-04-16),
14. 11938516 - Compression apparatuses, systems and methods for screening materials (2024-03-26),
15. 11890647 - Compression apparatuses, systems and methods for screening materials (2024-02-06),
Derrick Corporation is a global leader in providing innovative separation technology solutions for the mining and industrial industries. With over 70 years of experience, Derrick offers high-performance equipment such as vibrating screens, hydrocyclones, and centrifuges that improve efficiency and productivity. Their products are widely recognized for their superior quality, reliability, and customer satisfaction. Visit their website to learn more about Derrick Corporation and their cutting-edge solutions.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

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106 Patents

#3 in Buffalo, NY

#199 in New York

#3,451 in US

#7,176 in the World

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Buffalo, NY, United States of America

Derrick Corporation

Forward Citations = 695

29 inventors:

goldMedal Keith F Wojciechowski (53 out of 59 patents)

silverMedal James R Colgrove (38 out of 38 patents)

bronzeMedal Christian Newman (33 out of 33 patents)

4.  Michael L Peresan (19 out of 19 patents)

5.  Anthony J Lipa (10 out of 10 patents)

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