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For the Inventor, By the Inventor

Rock Hill, SC, United States of America

Chicago Pneumatic Tool Company


USPTO Granted Patents = 101


Trademarks = 2

Forward Citations = 1,560

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72 inventors (with patents filed for the assignee):

goldMedal David A Giardino (29 out of 29 patents)

silverMedal William K Wallace (25 out of 30 patents)

bronzeMedal Joseph R Groshans (9 out of 9 patents)

4.  Jack Pressley (5 out of 5 patents)

5.  Raymond J Schaedler (5 out of 5 patents)

6.  John D Clay (4 out of 7 patents)

7.  Pradip K Paul (4 out of 4 patents)

8.  Jeffrey J Spooner (4 out of 7 patents)

9.  Yutaka Kazamaki (4 out of 4 patents)

10.  Lester A Amtsberg (4 out of 4 patents)

11.  Marcel P D'Haem (4 out of 4 patents)

12.  David J Baker (4 out of 4 patents)

13.  Paul J Bilodeau (3 out of 3 patents)

14.  David M Young (3 out of 3 patents)

15.  John Knott (3 out of 3 patents)


Core Competencies:
Impact Wrench
Pneumatic Tool
Torque Control
Ratchet Wrench
Reciprocating Tool
Vibration Isolation
Power Hand Tool
Modular Control Apparatus
Nut Runner
Pulse Tool
Safety Throttle
Sealant Cutter

101 patents:

1. D650256 - Handle tool (2011-12-13),
2. D650255 - Nose tool (2011-12-13),
3. D540641 - Impact wrench (2007-04-17),
4. D540640 - Impact wrench (2007-04-17),
5. D540134 - Impact wrench (2007-04-10),
6. D535535 - Pneumatic ratchet wrench (2007-01-23),
7. D530171 - Pneumatic ratchet wrench (2006-10-17),
8. 6988565 - Retrofit kit for a modular control apparatus for a power impact tool (2006-01-24),
9. 6892826 - Processes of determining torque output and controlling power impact tools using a torque transducer (2005-05-17),
10. 6848516 - Processes of determining torque output and controlling power impact tools using a torque transducer (2005-02-01),
11. 6823949 - Modular control apparatus for a power impact tool (2004-11-30),
12. D493085 - Power tool (2004-07-21),
13. D491032 - Nut runner (2004-06-09),
14. 6705409 - Reciprocating tool having a piston retaining system (2004-03-16),
15. D484016 - Nut runner (2003-12-24),
Chicago Pneumatic Tool Company is a leading manufacturer of pneumatic tools, compressors, and accessories. With a history dating back to 1894, the company has a strong reputation for quality and innovation. Their product range includes impact wrenches, drills, grinders, sanders, as well as air compressors and treatment solutions. Chicago Pneumatic serves various industries such as automotive, industrial, construction, and mining, providing reliable tools to enhance productivity and efficiency.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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101 Patents

#2 in Rock Hill, SC

#28 in South Carolina

#3,618 in US

#7,506 in the World

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Rock Hill, SC, United States of America

Chicago Pneumatic Tool Company

Forward Citations = 1,560

72 inventors:

goldMedal David A Giardino (29 out of 29 patents)

silverMedal William K Wallace (25 out of 30 patents)

bronzeMedal Joseph R Groshans (9 out of 9 patents)

4.  Jack Pressley (5 out of 5 patents)

5.  Raymond J Schaedler (5 out of 5 patents)

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