Barre, MA, United States of America

Andrew G Johnson

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Certainteed Corporation, Other. Active years: 1978-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Andrew G Johnson. Retrieved from https://idiyas.com/inventor/andrew-g-johnson-suha9kn5

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

USPTO Granted Patents = 4 

% Patents Active = 75.0

Average Co-Inventor Count = 2.7

ph-index = 3

Forward Citations = 34(Granted Patents)


Location History:

  • Concord, CA (US) (1978)
  • Barre, MA (US) (2010 - 2020)

Company Filing History:


Years Active: 1978-2020

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4 patents (USPTO):Explore Patents

Title: Innovations by Andrew G Johnson

Introduction

Andrew G Johnson is an accomplished inventor based in Barre, MA (US). He holds a total of 4 patents that showcase his innovative contributions to the field of roofing materials. His work primarily focuses on developing algae-resistant products that enhance the durability and longevity of roofing systems.

Latest Patents

Among his latest patents are the algae-resistant roofing granules with controlled algaecide leaching rates and algae-resistant shingles. The process for producing these innovations involves extruding a mixture of mineral particles and a binder to create porous granule bodies. Algaecide is strategically distributed within the pores of these granules, allowing for controlled release. This innovative approach not only improves the performance of roofing materials but also addresses the common issue of algae growth.

Career Highlights

Throughout his career, Andrew has made significant strides in the roofing industry. He has worked with CertainTeed Corporation, where he contributed to the development of advanced roofing solutions. His expertise in material science and engineering has positioned him as a key player in the innovation of algae-resistant roofing products.

Collaborations

Andrew has collaborated with notable professionals in his field, including Keith C Hong and Husnu M Kalkanoglu. These partnerships have further enhanced his research and development efforts, leading to groundbreaking advancements in roofing technology.

Conclusion

Andrew G Johnson's innovative work in algae-resistant roofing materials demonstrates his commitment to improving building products. His patents reflect a deep understanding of material science and a dedication to sustainability in the roofing industry.

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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