Forward Citations = 16

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3 inventors (with patents filed for the assignee):

Ralph E Roper, Jr (1 out of 7 patents)

Gary F Lindgren (1 out of 1 patent)

Steven C Danenman (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 7534413 - Calcium-sodium polysulfide chemical reagent and production methods (2009-05-19),

2. 7074174 - Methods and apparatus for encapsulating hazardous debris (2006-07-11),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#291 in Indianapolis, IN

#1,327 in Indiana

#94,905 in US

Indianapolis, IN, United States of America

Heritage Environment Services, LLC

Forward Citations = 16

3 inventors:

Ralph E Roper, Jr (1 out of 7 patents)

Gary F Lindgren (1 out of 1 patent)

Steven C Danenman (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Heritage Environment Services, LLC. Retrieved from https://idiyas.com/company/heritage-environment-services

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]