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For the Inventor, By the Inventor

Bengaluru, India

Dibakar Dhara

This inventor holds 17 USPTO granted patents and 8 EPO patents, primarily in Polycarbonate Compositions. Top assignees: Sabic Innovative Plastics IP B.v., General Electric Company, Sabic Global Technologies B.v.. Active years: 2003-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dibakar Dhara. Retrieved from https://idiyas.com/inventor/dibakar-dhara

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

Calculating rank
USPTO Granted Patents = 17

% Patents Active = 35.3

 

Average Co-Inventor Count = 5.0

ph-index = 7

Forward Citations = 235(Granted Patents)


Location History:

  • Bangalore Karnataka, IN (2010)
  • West Bengal, IN (2010 - 2013)
  • Bengaluru, IN (2003 - 2014)

Company Filing History:

goldMedal9 out of 608 
 
Sabic Innovative Plastics IP B.v.
 patents
silverMedal7 out of 52,404 
 
General Electric Company
 patents
bronzeMedal1 out of 1,514 
 
Sabic Global Technologies B.v.
 patents

Years Active: 2003-2014

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Areas of Expertise:
Nanomaterials
Polysiloxane
Copolymers
Aliphatic Diols
Electrically Conductive
Thermoplastic Composition
Radiation Stable
Polycarbonate Articles
Sterilizing Methods
Transparent Blends
Dimensionally Stable
17 patents (USPTO):Explore Patents
1. 8865833 - Polycarbonate composition comprising nanomaterials (2014-10-21),
2. 8389648 - Polysiloxane-polycarbonate compositions, method of manufacture, and articles formed therefrom (2013-03-05),
3. 7994254 - Polysiloxane-polycarbonate compositions, and related methods and articles (2011-08-09),
4. 7888447 - Polycarbonate-polysiloxane copolymers, methods for the preparation thereof, and articles derived therefrom (2011-02-15),
5. 7807772 - Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom (2010-10-05),
6. 7718755 - Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom (2010-05-18),
7. 7687557 - Polycarbonates with fluoroalkylene carbonate end groups (2010-03-30),
8. 7649073 - Polycarbonate-poly(alkylene oxide) copolymer compositions and articles formed therefrom (2010-01-19),
9. 7642315 - Polycarbonate-poly(alkylene oxide) copolymer compositions and articles formed therefrom (2010-01-05),
10. 7638091 - Methods of sterilizing polycarbonate articles and methods of manufacture (2009-12-29),
11. 7374718 - Radiation stable aromatic carbonate polymer compositions (2008-05-20),
12. 7354988 - Electrically conductive compositions and method of manufacture thereof (2008-04-08),
13. 7138479 - Aliphatic diol polycarbonates and their preparation (2006-11-21),
14. 7135538 - Transparent polycarbonate-polysiloxane copolymer blend, method for the preparation thereof, and article derived therefrom (2006-11-14),
15. 7094861 - Thermoplastic composition containing polymeric anti-static salt, method of making, and use thereof (2006-08-22),

Title: The Innovative Journey of Dibakar Dhara

Introduction

Dibakar Dhara, based in Bengaluru, India, is a prolific inventor known for his significant contributions to the field of polymer science. With an impressive portfolio of 17 patents, he continues to push the boundaries of innovation, particularly in the development of advanced polycarbonate compositions.

Latest Patents

Among his latest patents, Dibakar has developed a polycarbonate composition comprising nanomaterials. This innovative method involves preparing a polycarbonate nanocomposite by forming a reactant mixture that includes a nanomaterial, a solvent, a dihydroxy compound, and an activated carbonate. Through polymerization of these components in the presence of the solvent, he has successfully created polycarbonate nanocomposites and thermoplastic compositions that include these composites.

Another noteworthy patent relates to polysiloxane-polycarbonate compositions, which features a combination of various copolymers including aromatic polycarbonate and polysiloxane-polycarbonate block copolymer. These compositions are designed to provide articles with impressive properties such as low haze, high luminous transmittance, and superior hydro-aging characteristics. Additionally, when formulated correctly, these articles can demonstrate excellent flame retardance.

Career Highlights

Dibakar has an impressive career history, having worked with renowned companies like Sabic Innovative Plastics and General Electric Company. His experiences in these organizations have greatly contributed to his expertise in polymer innovation and material science, leading to the remarkable inventions he has developed.

Collaborations

Throughout his career, Dibakar has collaborated with talented individuals, including colleagues Katherine Campbell Glasgow and Gautam Chatterjee. These collaborations have not only enriched his professional journey but have also fostered an environment of shared knowledge and innovation.

Conclusion

Dibakar Dhara's impressive body of work and his continuous pursuit of innovation mark him as a significant contributor to the field of material science. His patents reflect his commitment to improving the quality and functionality of polymer compositions, ultimately benefiting various industries and advancing technological progress.

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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