Maharashtra, India

Rajendra Narayanrao Kankan

This inventor holds 85 USPTO granted patents and 16 published patent applications, plus 4 CIPO patents and 33 EPO patents, primarily in Pharmaceutical Chemistry (CPC class A61K31-437). Top assignee: Cipla Limited. Active years: 2006-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rajendra Narayanrao Kankan. Retrieved from https://idiyas.com/inventor/rajendra-narayanrao-kankan

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

USPTO Granted Patents = 85 

% Patents Active = 17.6


 

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 80(Granted Patents)

Forward Citations (Not Self Cited) = 69(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Maharashtra, IN (2006 - 2015)
  • Mumbai, IM (2016)
  • Mumbai Maharashtra, IN (2016)
  • Mumbai, IN (2006 - 2020)

Company Filing History:


Years Active: 2006-2024

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Areas of Expertise:
Rifaximin
Bortezomib
Sitagliptin
Atazanavir Sulphate
Doxazosin
Zanamivir
Nateglinide
Paliperidone
Antiviral Compounds
Polymorphic Forms
Alfuzosin Hydrochloride
Bosentan
85 patents (USPTO):Explore Patents

Title: Rajendra Narayanrao Kankan: Innovator Extraordinaire in Pharmaceutical Sciences

Introduction:

Rajendra Narayanrao Kankan, based out of Maharashtra, India, is a notable figure in the world of pharmaceutical sciences. With an impressive portfolio of 83 patents, Kankan has made significant contributions to the field. In this article, we will explore his latest patents, highlight his career achievements, and delve into his collaborations with his talented coworkers.

Latest Patents:

Kankan's latest patents revolve around the widely used antibiotic, Rifaximin. He has developed groundbreaking innovations in the form of amorphous rifaximin, along with methods to produce it and pharmaceutical compositions containing this compound. Moreover, Kankan has devised techniques to convert amorphous rifaximin to crystalline rifaximin, and vice versa. These developments showcase his expertise in pharmaceutical formulation and drug delivery systems.

One of Kankan's noteworthy inventions is the creation of a rifaximin complex. This complex comprises rifaximin and a complexing agent, such as polyvinyl pyrrolidone (PVP) or a cyclodextrin. He has also introduced a process for preparing this complex, an associated pharmaceutical composition, and elucidated its therapeutic uses. These patent filings highlight Kankan's innovative approach to enhancing drug formulations and improving drug efficacy.

Career Highlights:

Alongside his exceptional patent portfolio, Kankan's professional journey has been enriched by his association with Cipla Limited. Cipla, based in Maharashtra, is one of India's leading pharmaceutical companies, known for its dedication to affordable and accessible healthcare solutions. Kankan's affiliation with Cipla demonstrates his commitment to pushing the boundaries of pharmaceutical research.

Collaborations:

Kankan's success is also attributed to his collaborations with talented colleagues. Notably, he has worked closely with Dharmaraj Ramachandra Rao and Srinivas Laxminarayan Pathi. Their combined expertise and shared dedication to advancing pharmaceutical sciences have led to several remarkable inventions and patents. The collaborative environment at Cipla Limited has fostered an exchange of knowledge and ideas, contributing to their collective success.

Conclusion:

Rajendra Narayanrao Kankan's vast patent portfolio, centered around his groundbreaking innovations in the realm of pharmaceutical sciences, solidifies his position as an outstanding innovator. His recent patents in the field of Rifaximin highlight his competence in drug formulation and delivery systems. Kankan's career highlights, including his association with Cipla Limited, exemplify his commitment to improving healthcare accessibility and affordability. Collaborations with esteemed colleagues further unveil his ability to work synergistically towards groundbreaking discoveries. Kankan continues to leave a significant impact on the pharmaceutical industry, perpetuating a culture of innovation and contributing to advancements in patient care.

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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