Lincolnshire, IL, United States of America

Howard L Grimmett

This inventor holds 5 USPTO granted patents. Top assignees: Chemplex Company, Other. Active years: 1976-1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Howard L Grimmett. Retrieved from https://idiyas.com/inventor/howard-l-grimmett

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 4

Forward Citations = 82(Granted Patents)


Location History:

  • Clinton, IA (US) (1976)
  • Lincolnshire, IL (US) (1977 - 1979)

Company Filing History:


Years Active: 1976-1979

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5 patents (USPTO):Explore Patents

Title: Howard L Grimmett: Innovator in Polymer Chemistry

Introduction

Howard L Grimmett is a notable inventor based in Lincolnshire, IL (US), recognized for his contributions to the field of polymer chemistry. He holds a total of five patents, showcasing his innovative approach to the development of catalysts and polymerization methods.

Latest Patents

Grimmett's latest patents include a "Method of making polymers and copolymers of 1-olefins," which introduces a new catalyst prepared through a unique process involving inorganic supports and organic chromium compounds. This method emphasizes the importance of activating the catalyst through non-oxidative pyrolysis, enhancing its effectiveness in polymerization. Another significant patent is the "Method of polymerization," which details a catalyst preparation involving the modification of inorganic supports with zirconium compounds and chromium chelates. This innovative approach allows for the efficient production of polymers of 1-olefins, demonstrating Grimmett's expertise in the field.

Career Highlights

Throughout his career, Grimmett has worked with Chemplex Company, where he applied his knowledge and skills in polymer chemistry. His work has significantly impacted the development of new materials and processes in the industry.

Collaborations

Grimmett has collaborated with notable individuals such as Yu-Tang Hwang and Joseph Liu, contributing to advancements in polymer technology and catalyst development.

Conclusion

Howard L Grimmett's innovative work in polymer chemistry and his numerous patents highlight his significant contributions to the field. His dedication to advancing polymerization methods continues to influence the industry today.

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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