Hyderabad Telangana, India

Pravin Raybaji Likhar

This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Council of Scientific and Industrial Research. Active years: 2001-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Pravin Raybaji Likhar. Retrieved from https://idiyas.com/inventor/pravin-raybaji-likhar

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 50.0

Average Co-Inventor Count = 5.1

ph-index = 1


Location History:

  • Hyderabad, IN (2001)
  • Andhra Pradeah, IN (2005)

Company Filing History:


Years Active: 2001-2005

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2 patents (USPTO):Explore Patents

Title: Pravin Raybaji Likhar: Innovator in Chemical Synthesis

Introduction

Pravin Raybaji Likhar is a notable inventor based in Hyderabad, Telangana, India. He has made significant contributions to the field of chemical synthesis, holding 2 patents that showcase his innovative approaches to complex chemical processes.

Latest Patents

One of his latest patents is titled "Process for the synthesis of N-Substituted β-amino nitriles through the ring opening of aziridines." This invention involves the simultaneous ring opening and N-substitution of various N-tosyl aziridines with different aliphatic and aromatic nitriles in the presence of a catalytic amount of metal triflates. This method yields different N-substituted β-amino nitriles with excellent yields and selectivities.

Another significant patent is "Process for the preparation of malononitrile." This invention describes an improved process for preparing malononitrile using a porous particulate solid substance as an efficient absorbent. In this process, cyanoacetamide is reacted with POCl3 as a dehydrating agent in a suitable solvent, along with an organic N-donor base as a catalyst. The product is distilled under vacuum from the crude mixture in the presence of a stabilizer, resulting in high-purity malononitrile with an extended shelf-life.

Career Highlights

Pravin Raybaji Likhar is associated with the Council of Scientific and Industrial Research, where he continues to advance his research and development efforts in chemical synthesis. His work has been instrumental in enhancing the efficiency and effectiveness of chemical processes.

Collaborations

He collaborates with esteemed colleagues such as Boyapati Manoranjan Choudary and Jeyalakshmi Kulandaivelu, contributing to a dynamic research environment that fosters innovation and discovery.

Conclusion

Pravin Raybaji Likhar's contributions to chemical synthesis through his patents reflect his dedication to innovation in the field. His work not only advances scientific knowledge but also has practical applications that can benefit various industries.

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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