% Expired Patents = 25.0

Trademarks = 2

Forward Citations = 11

Loading Chart...

7 inventors (with patents filed for the assignee):

John J Breedlove (3 out of 5 patents)

Erik Denver (3 out of 4 patents)

Joseph P Bower (2 out of 4 patents)

4. Steven S Fleagle (2 out of 4 patents)

5. Tyler Proffitt (2 out of 3 patents)

6. Robert Lamond (1 out of 3 patents)

7. Herbert B Stiltner (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 9617705 - Retainment wall for underground mine and method of construction (2017-04-11),

2. 9022689 - Pumpable mine ventilation structure (2015-05-05),

3. 8371658 - Apparatus and method for supporting a mine rib (2013-02-12),

4. 8246276 - Pumpable crib bag assembly and method of installation (2012-08-21),

Company Overview

Heintzmann Corporation is a leading provider of engineering solutions for the construction and mining industry. With a focus on quality, innovation, and sustainability, they offer a range of products and services including rock support systems, tunnel support systems, and mining equipment. With over 160 years of experience, Heintzmann Corporation is dedicated to creating safe and efficient solutions for their clients worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#1 in Cedar Bluff, VA

#1,104 in Virginia

#60,671 in US

Cedar Bluff, VA, United States of America

Heintzmann Corporation

Forward Citations = 11

7 inventors:

John J Breedlove (3 out of 5 patents)

Erik Denver (3 out of 4 patents)

Joseph P Bower (2 out of 4 patents)

4. Steven S Fleagle (2 out of 4 patents)

5. Tyler Proffitt (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Heintzmann Corporation. Retrieved from https://idiyas.com/company/heintzmann

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]