Akron, OH, United States of America

Robert H Campbell

This inventor holds 4 USPTO granted patents. Top assignee: Monsanto Company. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Robert H Campbell. Retrieved from https://idiyas.com/inventor/robert-h-campbell

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 3

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 1976-1981

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4 patents (USPTO):Explore Patents

Title: Robert H. Campbell, Rubber-Stabilization Inventor

Introduction

Robert H. Campbell was an inventor associated with Monsanto Company in Akron, Ohio. His patent work focused on chemical compounds designed to protect diene elastomers from ozone-related degradation. His portfolio includes 4 patents.

Latest Patents

Campbell’s listed patents include “Poly(6-oxy-2,2,4-trialkyl-1,2-dihydroquinoline)alkylene Compounds as Antidegradants.” The patent describes vulcanizable or vulcanized diene elastomers containing stabilizing amounts of these compounds, which are intended to improve resistance to ozone attack. It also presents the antidegradants as novel compounds.

Another listed patent is “Bis-(Alkylaminophenoxy)alkanes as Antidegradants for Rubber.” It describes diene elastomers formulated with certain bis-alkylaminophenoxyalkyl antidegradants to help resist ozone attack, and discloses a novel class of bis-alkylaminophenoxyalkane compounds.

Career Highlights

Campbell’s documented inventions address rubber durability through the development of chemical antidegradants. The patent descriptions connect his work with efforts to protect elastomer materials from ozone exposure.

Collaborations

Campbell’s listed coworkers include Raleigh W. Wise and Gene R. Wilder. The available information identifies these professional associations but does not specify particular joint patents or projects.

Conclusion

Robert H. Campbell’s patent record reflects a focused contribution to rubber chemistry, particularly the development of antidegradant compounds intended to improve diene elastomers’ resistance to ozone.

Profile summary based on public USPTO records.
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]
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