Forward Citations = 73

Loading Chart...

6 inventors (with patents filed for the assignee):

Roger A Webel (2 out of 3 patents)

Salvatore L Zingales, Sr (1 out of 1 patent)

Jack T Anderson (1 out of 2 patents)

4. Robert L Truelsch (1 out of 1 patent)

5. Kevin M Kunzman (1 out of 1 patent)

6. Ron R Karani (1 out of 3 patents)

5 patents: Sort by Forward Citations

1. 6491114 - Slow start control for a hydraulic hammer (2002-12-10),

2. 6385870 - Control system for an excavator thumb and a method of controlling an excavator thumb (2002-05-14),

3. 5542180 - Heavy duty shear with anti-jam feature (1996-08-06),

4. 5230151 - Heavy duty shear head and mounting support (1993-07-27),

5. 4906049 - Ripper using a hydraulic hammer and a method for making the improvement (1990-03-06),

Npk Construction Equipment, Inc. is a leading manufacturer of construction equipment known for its high quality and durability. With over 35 years of experience, Npk offers a wide range of products including hydraulic hammers, compactors, and crushers. Their commitment to excellence and innovation has made them a trusted name in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

5 Patents

#1 in Walton Hills, OH

#1,948 in Ohio

#50,245 in US

Walton Hills, OH, United States of America

Npk Construction Equipment, Inc.