For the Inventor, By the Inventor

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DeWitt, NE, United States of America

Petersen Manufacturing Co., Inc.

USPTO Granted Patents = 33

Trademarks = 23

Forward Citations = 1,134

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16 inventors (with patents filed for the assignee):

Joseph A Sorensen (18 out of 36 patents)

Dwight L Gatzemeyer (8 out of 10 patents)

Christian Petersen (5 out of 5 patents)

4. Thomas M Chervenak (3 out of 9 patents)

5. Steven Edward Zlomke (2 out of 9 patents)

6. Burrell T Burney (2 out of 4 patents)

7. Ralph Petersen (2 out of 2 patents)

8. Jeffrey Spanski (2 out of 2 patents)

9. Gene L Tyser (1 out of 5 patents)

10. Blaise M Wooderson (1 out of 14 patents)

11. Anthony Bernard Fuller (1 out of 13 patents)

12. LaVerne R Durfee, Jr (1 out of 2 patents)

13. Terry G Leseberg (1 out of 1 patent)

14. Toby J Beckmann (1 out of 5 patents)

15. Charles A Poremba (1 out of 1 patent)

33 patents: Sort by Forward Citations

1. 5980065 - Submersible light (1999-11-09),

2. 5503049 - Opposed handle hand tool with composite handle (1996-04-02),

3. D366829 - Tool display package (1996-02-06),

4. D357165 - Pair of jaws for a welding clamp (1995-04-11),

5. D355104 - Pipe clamp (1995-02-07),

6. 5377567 - Bicycle tool (1995-01-03),

7. 5351585 - Large capacity locking pliers (1994-10-04),

8. D350892 - Spring clamp (1994-09-27),

9. 5335772 - Tool display package (1994-08-09),

10. 5326076 - Hand crew clamp (1994-07-05),

11. D342433 - Handle for a hex key wrench set (1993-12-21),

12. D341069 - Protective pad for the jaws of a clamp (1993-11-09),

13. D340851 - Protective pad for the jaws of a clamp (1993-11-02),

14. 5222420 - Quick action bar clamp (1993-06-29),

15. 5203797 - Rapid jaw adjustment for tools and the like (1993-04-20),

Petersen Manufacturing Co., Inc. is a leading manufacturer of high-quality aluminum and stainless steel products. With over 50 years of experience, we specialize in custom metal fabrication for a wide range of industries including aerospace, automotive, and defense. Our state-of-the-art facility and skilled craftsmen ensure superior precision and performance in every product we deliver.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

33 Patents

#1 in DeWitt, NE

#565 in Nebraska

#9,940 in US

#19,530 in the World

DeWitt, NE, United States of America

Petersen Manufacturing Co., Inc.

Forward Citations = 1,134

16 inventors:

Joseph A Sorensen (18 out of 36 patents)

Dwight L Gatzemeyer (8 out of 10 patents)

Christian Petersen (5 out of 5 patents)

4. Thomas M Chervenak (3 out of 9 patents)

5. Steven Edward Zlomke (2 out of 9 patents)

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