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For the Inventor, By the Inventor

Berwyn, PA, United States of America

Michael K O'Brien

This inventor holds 13 USPTO granted patents, primarily in Organosilicon Polymers. Top assignees: Hercules Corporation, Aventis Pharmaceuticals Inc., Aventis Pharmaceuticals Products Inc.. Active years: 1993-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Michael K O'Brien. Retrieved from https://idiyas.com/inventor/michael-k-o-brien

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 6

Forward Citations = 107(Granted Patents)


Location History:

  • Wilmington, DE (US) (1994 - 1996)
  • New Castle County, DE (US) (1993 - 1997)
  • Berwyn, PA (US) (1997 - 2002)

Company Filing History:

goldMedal7 out of 1,204 
 
Hercules Corporation
 patents
silverMedal3 out of 207 
 
Aventis Pharmaceuticals Inc.
 patents
bronzeMedal2 out of 23 
 
Aventis Pharmaceuticals Products Inc.
 patents
4. 1 out of 111 
 
Rhone-Poulenc Rorer Pharmaceuticals Inc.
 patents

Years Active: 1993-2002

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Areas of Expertise:
Chiral Amines
Nonlinear Optical Media
Organosilicon Polymers
Amino Ester Compounds
Dichroic Azo Dyes
Optical Response
Adenosine Derivatives
Crosslinked Polymer
13 patents (USPTO):Explore Patents
1. 6433209 - Alpha-substitution of unprotected &bgr;-amino ester compounds (2002-08-13),
2. 6433172 - Steroespecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines (2002-08-13),
3. 6429315 - Process for preparing N6-substituted adenosine derivatives (2002-08-06),
4. 6184382 - Process for preparing N6-substituted adenosine derivatives (2001-02-06),
5. 6143894 - Preparation of (2000-11-07),
6. 6127550 - Stereospecific preparation of chiral 1-aryl-and (2000-10-03),
7. 5714304 - Nonlinear optical media of organosilicon crosslinked polymer (1998-02-03),
8. 5663308 - Organosilicon polymers, and dyes, exhibiting nonlinear optical response (1997-09-02),
9. 5605726 - Organosilicon polymers, and dyes, exhibiting nonlinear optical response (1997-02-25),
10. 5589100 - Dichroic azo dyes (1996-12-31),
11. 5326865 - Arylazo and poly(arylazo) dyes having at least one core radical selected (1994-07-05),
12. 5298588 - Organosilicon polymers, and dyes, exhibiting nonlinear optical response (1994-03-29),
13. 5254655 - Organosilicon polymers, and dyes, exhibiting nonlinear optical response (1993-10-19),

Title: Michael K O'Brien: Innovator in Chiral Chemistry

Introduction

Michael K O'Brien is a distinguished inventor based in Berwyn, PA (US). He has made significant contributions to the field of chiral chemistry, holding a total of 13 patents. His work focuses on the development of methods for the stereospecific preparation of various chemical compounds.

Latest Patents

One of his latest patents is titled "Stereospecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines." This invention is directed to methods for stereospecifically preparing [(1-optionally substituted aryl)- or (1-optionally substituted heteroaryl)]-2-substituted ethyl-2-amines, which possess chirality at the 2-position. Additionally, he has developed a patent for "Alpha-substitution of unprotected β-amino ester compounds." This patent outlines methods for stereoselective substitution, where a (mono or un)-α-substituted unprotected β-amino ester compound or its salt is reacted with an aliphatic electrophile in the presence of specific bases.

Career Highlights

Throughout his career, Michael K O'Brien has worked with notable companies such as Hercules Corporation and Aventis Pharmaceuticals Inc. His expertise in chiral chemistry has allowed him to make impactful advancements in the pharmaceutical industry.

Collaborations

Michael has collaborated with esteemed colleagues, including Robert P Grasso and Paul J Shannon. These partnerships have further enriched his research and development efforts.

Conclusion

Michael K O'Brien's innovative work in chiral chemistry and his impressive portfolio of patents highlight his significant contributions to the field. His collaborations and career achievements reflect his dedication to advancing chemical 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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