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For the Inventor, By the Inventor

Stow, OH, United States of America

Roy W Siedenstrang

This inventor holds 9 USPTO granted patents. Top assignee: Phillips Petroleum Company. Active years: 1976-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Roy W Siedenstrang. Retrieved from https://idiyas.com/inventor/roy-w-siedenstrang

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 8

Forward Citations = 137(Granted Patents)


Location History:

  • Akron, OH (US) (1976 - 1983)
  • Stow, OH (US) (1979 - 1984)

Company Filing History:

goldMedal9 out of 5,071 
 
Phillips Petroleum Company
 patents

Years Active: 1976-1984

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9 patents (USPTO):Explore Patents
1. 4456706 - Molding compounds, sponge articles produced therefrom and process of (1984-06-26),
2. 4400483 - Thermoplastic elastomer compositions for low pressure molding (1983-08-23),
3. 4370189 - Modifying thermoplastic materials and products thereof (1983-01-25),
4. 4360607 - Microwave energy sensitizing concentrate (1982-11-23),
5. 4352854 - Molded sponge-like thermoplastic elastomer articles having thin, dense (1982-10-05),
6. 4288399 - Process for low pressure molding thermoplastic elastomer compositions (1981-09-08),
7. 4234636 - Thermoplastic elastomeric composition, product and method of manufacture (1980-11-18),
8. 4168341 - Fabric-backed teleblock copolymer composition with dulled surface useful (1979-09-18),
9. 3959545 - Unvulcanized expanded high green strength synthetic rubber product and (1976-05-25),

Title: Roy W. Siedenstrang: Innovator in Molding Compounds

Introduction

Roy W. Siedenstrang is a notable inventor based in Stow, Ohio. He has made significant contributions to the field of molding compounds, with a total of 9 patents to his name. His work has advanced the technology behind sponge-like materials and thermoplastic elastomers.

Latest Patents

Siedenstrang's latest patents include innovative processes and compositions. One of his key inventions is a molded object that features a sponge-like interior surrounded by a polymeric skin. This invention involves a specific molding composition that incorporates copolymers of vinyl-substituted aromatic compounds and conjugated dienes. Another significant patent focuses on thermoplastic elastomer compositions designed for low-pressure molding, which utilize a variety of polar compounds to enhance the molding process.

Career Highlights

Throughout his career, Siedenstrang has worked with Phillips Petroleum Company, where he has applied his expertise in polymer science to develop new materials and processes. His contributions have not only advanced the company's capabilities but have also influenced the broader industry.

Collaborations

Siedenstrang has collaborated with notable colleagues, including Agmund K. Thorsrud and William H. Cornell. These partnerships have fostered innovation and have led to the development of several patented technologies.

Conclusion

Roy W. Siedenstrang's work in molding compounds and thermoplastic elastomers showcases his innovative spirit and dedication to advancing material science. His patents reflect a commitment to improving manufacturing processes and product performance.

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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