Seabrook, TX, United States of America

Porter Clarke Shannon

This inventor holds 27 USPTO granted patents and 7 published patent applications, plus 3 CIPO patents and 11 EPO patents, primarily in Thermoplastic Vulcanizates. Top assignees: Exxonmobil Chemical Patents Inc., Univation Technologies, LLC, The Yokohama Rubber Co., Ltd.. Active years: 2004-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Porter Clarke Shannon. Retrieved from https://idiyas.com/inventor/porter-clarke-shannon

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

USPTO Granted Patents = 27 

% Patents Active = 59.3

 

 

Average Co-Inventor Count = 3.6

ph-index = 8

Forward Citations = 195(Granted Patents)


Company Filing History:


Years Active: 2004-2026

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Areas of Expertise:
Thermoplastic Vulcanizates
Polymer Composition
Polyethylene Films
Bimodal Polyolefins
Elastomers
Foaming Applications
Adhesive Extrusion
Catalyst Compositions
Gas Phase Copolymers
Molecular Weight Distribution
Reactor Wall Coating
Dynamically Vulcanized Films
27 patents (USPTO):Explore Patents

Title: **Porter Clarke Shannon: Innovator in Polyethylene Copolymers and Thermoplastic Vulcanizates**

Introduction

Porter Clarke Shannon, based in Seabrook, Texas, is a prolific inventor with a remarkable portfolio comprising 26 patents. His contributions to the fields of polymer chemistry and materials science have led to advancements in products essential for diverse applications. Through his innovative work, Shannon has developed materials that enhance the functionality and performance of polymers.

Latest Patents

Shannon's recent patents highlight his expertise in developing gas phase polyethylene copolymers and thermoplastic vulcanizates (TPVs). One of his notable patents describes polyethylene copolymers designed to offer improved film properties. These copolymers possess a density ranging from about 0.905 to about 0.911 g/cm and a specific DRI/I2 ratio, making them suitable for high-performance film applications. The copolymers can be created by polymerizing ethylene with olefin comonomers at controlled temperatures and pressures. Their application includes films exhibiting an optimal oxygen transmission rate and excellent hot tack sealing properties, which are vital for packaging solutions.

In addition, Shannon has developed innovative TPV compositions for foaming applications. These compositions, containing at least partially vulcanized rubber and thermoplastic components, are designed to be particularly effective when combined with thermo-expandable microsphere foaming agents. The methods and materials detailed in these patents have significant implications for various industries, driving advancements in product performance and efficiency.

Career Highlights

Throughout his career, Porter Clarke Shannon has worked with renowned companies such as ExxonMobil Chemical Patents Inc. and Univation Technologies, LLC. His tenure at these organizations allowed him to refine his skills in polymer technology and to collaborate on pivotal research and development projects. Shannon's body of work demonstrates his commitment to advancing materials science and enhancing industrial applications.

Collaborations

In his career, Shannon has had the opportunity to work alongside notable colleagues, including Fred David Ehrman and Pradeep P Shirodkar. Collaborations with such skilled professionals highlight the collaborative spirit of innovation in the field of polymer research and development. Together, they have contributed to the evolution of materials that push the boundaries of performance.

Conclusion

Porter Clarke Shannon's extensive patent portfolio and his innovative spirit exemplify the impact of dedicated research and development in the field of polymer chemistry. His contributions to the creation of advanced polyethylene copolymers and thermoplastic vulcanizates underscore the importance of innovation in enhancing product functionalities. As industries continue to evolve, Shannon's work will undoubtedly play a critical role in shaping the future of material science.

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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