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For the Inventor, By the Inventor

Breitscheid, Germany

James-Michael Barnes

This inventor holds 8 USPTO granted patents and 1 published patent application and 6 EPO patents. Top assignees: Bayer Aktiengesellschaft, Bayer Materialscience Ag. Active years: 2001-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James-Michael Barnes. Retrieved from https://idiyas.com/inventor/james-michael-barnes

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

USPTO Granted Patents = 8 

% Patents Active = 12.5

 

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 23(Granted Patents)


Location History:

  • Hochscheid, DE (2001)
  • Breitscheid, DE (2003 - 2012)
  • Breitscheid-Hochscheid, DE (2012)

Company Filing History:

goldMedal4 out of 12,266 
 
Bayer Aktiengesellschaft
 patents
silverMedal4 out of 532 
 
Bayer Materialscience Ag
 patents

Years Active: 2001-2012

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8 patents (USPTO):Explore Patents
1. 8273846 - Polyurethane and polyurethane urea elastomers based on polycarbonate polyols (2012-09-25),
2. 8242229 - Polyurethanes cured with amines and their preparation (2012-08-14),
3. 7951896 - Process for the production of NCO prepolymers that are stable to sedimentation, and their use (2011-05-31),
4. 7763683 - Polyester polyols, a process for the production thereof and the use thereof (2010-07-27),
5. 6977290 - Process for preparing oligomeric aliphatic diols, polycarbonatediols based thereon and prepolymers thereof (2005-12-20),
6. 6809172 - Polyester polyols and the use of polyester for producing PUR cast elastomers that have an improved resistance to hydrolysis (2004-10-26),
7. 6667370 - Method for producing prepolymers containing isocyanate end groups, incorporating a small proportion of base isocyanates (2003-12-23),
8. 6177494 - N,N′-disubstituted N-(2-hydroxyalkyl)-ureas (2001-01-23),

Title: James-Michael Barnes: Innovator in Polyurethane Technology

Introduction

James-Michael Barnes is a notable inventor based in Breitscheid, Germany. He has made significant contributions to the field of polyurethane technology, holding a total of 8 patents. His work focuses on developing high-quality elastomers that meet the demands of various applications.

Latest Patents

Barnes' latest patents include innovations in polyurethane and polyurethane urea elastomers based on polycarbonate polyols. These inventions exhibit unique combinations of processing characteristics, oxidation resistance, and mechanical properties, making them suitable for particularly demanding applications. Another significant patent involves polyurethane prepolymers prepared from 2,4'-diisocyanate diphenylmethane (2,4'-MDI) and aliphatic diisocyanates. These prepolymers can be cured with various amines, resulting in elastomers with extended pour life and improved health and safety aspects compared to traditional methods.

Career Highlights

Throughout his career, Barnes has worked with prominent companies such as Bayer MaterialScience AG and Bayer Aktiengesellschaft. His experience in these organizations has allowed him to refine his expertise in polyurethane technology and contribute to innovative solutions in the industry.

Collaborations

Barnes has collaborated with notable colleagues, including Manfred Schmidt and Hartmut Nefzger. These partnerships have further enhanced his work and led to advancements in polyurethane applications.

Conclusion

James-Michael Barnes is a distinguished inventor whose contributions to polyurethane technology have had a lasting impact on the industry. His innovative patents and collaborations reflect his commitment to advancing 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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