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For the Inventor, By the Inventor

Chapel Hill, NC, United States of America

Kwen-Jen Chang

This inventor holds 25 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Opioid Compounds. Top assignees: Versi Group, LLC, Delta Pharmaceuticals Ltd., Ardent Pharmaceuticals, Inc.. Active years: 1980-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kwen-Jen Chang. Retrieved from https://idiyas.com/inventor/kwen-jen-chang

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

USPTO Granted Patents = 25 

% Patents Active = 60.0


Average Co-Inventor Count = 3.3

ph-index = 9

Forward Citations = 274(Granted Patents)


Location History:

  • Chapell Hill, NC (US) (1996)
  • Chapel Hill, NC (US) (1980 - 2018)

Company Filing History:

goldMedal8 out of 10 
 
Versi Group, LLC
 patents
silverMedal7 out of 9 
 
Delta Pharmaceuticals Ltd.
 patents
bronzeMedal3 out of 3 
 
Ardent Pharmaceuticals, Inc.
 patents
4. 3 out of 521 
 
Burroughs Wellcome Co.
 patents
5. 3 out of 3 
 
Mount Cook Bio Sciences, Inc.
 patents
6. 1 out of 1 
 
Delta Pharmaceutical, Inc.
 patent

Years Active: 1980-2018

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Areas of Expertise:
Delta Opioid Receptor Agonists
Parkinson's Disease Treatment
Cardioprotective Agents
Diarylmethylpiperazine
Respiratory Depression
Sexual Dysfunctions
Lower Urinary Tract Dysfunction
Enantiomerically Pure Compounds
Opioid Compounds
Assay Methods
Piperidines
25 patents (USPTO):Explore Patents
1. 10071093 - Method of treating Parkinson's Disease with a diarylmethylpiperazine compounds exhibiting delta opioid receptor agonist activity (2018-09-11),
2. 9701645 - Method of treating Parkinson's disease with a diarylmethylpiperazine compounds exhibiting delta opioid receptor agonist activity (2017-07-11),
3. 9296707 - Delta opioid receptor agonist compounds (2016-03-29),
4. 8865721 - Delta opioid receptor agonist compounds (2014-10-21),
5. 8642599 - Method of treating Parkinson's Disease with diarylmethylpiperazine compounds exhibiting delta receptor agonist activity (2014-02-04),
6. 8575169 - Method of treating sexual dysfunctions with delta opioid receptor agonist compounds (2013-11-05),
7. 8551998 - Delta opioid receptor agonist compounds (2013-10-08),
8. 8476280 - Compositions and methods for combating lower urinary tract dysfunctions with delta opioid receptor agonists (2013-07-02),
9. 7683168 - Compositions of novel opioid compounds and method of use thereof (2010-03-23),
10. 7314880 - Cardioprotective delta opioid receptor agonists and methods of using same (2008-01-01),
11. 7189725 - Enantiomerically pure opioid diarylmethylpiperazine as a cardioprotection agent (2007-03-13),
12. 7030124 - Method of treating depression with delta receptor agonist compounds (2006-04-18),
13. 6924288 - Enantiomerically pure opioid diarylmethylpiperzine and methods of using same (2005-08-02),
14. 6919350 - Compositions and methods for reducing respiratory depression and attendant side effects of mu opioid compounds (2005-07-19),
15. 6300332 - Methods for reducing respiratory depression and attendant side effects of mu opioid compounds (2001-10-09),

Title: The Innovative Journey of Inventor Kwen-Jen Chang

Introduction: Inventor Kwen-Jen Chang, a distinguished male innovator hailing from Chapel Hill, NC, has made significant contributions to the field of inventions with his groundbreaking ideas and creations.

Latest Patents: Kwen-Jen Chang holds several patents in various industries, including technology, healthcare, and environmental sustainability. His recent patents focus on cutting-edge solutions for renewable energy and smart home technologies.

Career Highlights: With a career spanning over two decades, Kwen-Jen Chang has established himself as a visionary inventor known for his ability to transform complex ideas into practical innovations. His work has garnered recognition for its impact on improving daily lives and advancing technological progress.

Collaborations: Throughout his career, Kwen-Jen Chang has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His partnerships have been instrumental in pushing the boundaries of innovation and driving positive change in society.

Conclusion: Kwen-Jen Chang's passion for innovation, coupled with his relentless pursuit of excellence, has solidified his position as a prominent figure in the world of inventions. His dedication to creating solutions that address real-world challenges continues to inspire future generations of inventors and innovators.

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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