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For the Inventor, By the Inventor

Möhlin, Switzerland

Stephen Kelly

This inventor holds 31 USPTO granted patents, primarily in Liquid Crystals. Top assignees: Hoffmann-La Roche Inc., Rolic Ag. Active years: 1989-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Stephen Kelly. Retrieved from https://idiyas.com/inventor/stephen-kelly

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

USPTO Granted Patents = 31

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 7

Forward Citations = 256(Granted Patents)


Location History:

  • Kaiseraugst, CH (1989 - 1992)
  • Mohlen, CH (1993)
  • Mohlin, CH (1991 - 1997)
  • Mohlih, CH (1997)

Company Filing History:

goldMedal29 out of 5,024 
 
Hoffmann-La Roche Inc.
 patents
silverMedal2 out of 131 
 
Rolic Ag
 patents

Years Active: 1989-1997

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Areas of Expertise:
Liquid Crystals
Chiral Dopants
Photopolymerization
Optically Active Compounds
Ferroelectric Mixtures
Linear Polymers
Aromatic Esters
Cyclohexane Compounds
Nitrogen Heterocycles
Pyridine Compounds
Oligomers
Photo-Cross-Linkable
31 patents (USPTO):Explore Patents
1. 5650534 - Optically active smectic photo-cross-linkable liquid crystals (1997-07-22),
2. 5637255 - Chiral dioxolanes (1997-06-10),
3. 5593617 - Photochemically polymerizable liquid crystals (1997-01-14),
4. 5567349 - Photo cross-linkable liquid crystals (1996-10-22),
5. 5539074 - Linear and cyclic polymers or oligomers having a photoreactive ethene (1996-07-23),
6. 5484551 - Substituted phenyl 4-[(E)-alk-2-enoyloxy]benzoates (1996-01-16),
7. 5411676 - Chiral dopants for liquid crystalline mixtures (1995-05-02),
8. 5393458 - Aromatic esters and liquid crystal mixtures containing same (1995-02-28),
9. 5380462 - Cyclohexyl alkenoate compounds (1995-01-10),
10. 5371230 - Phenylpyridine derivatives and liquid crystalline mixtures containing (1994-12-06),
11. 5360577 - Oxaxoline derivatives (1994-11-01),
12. 5356563 - Liquid crystalline mixtures having a chiral tilted smectic phase (1994-10-18),
13. 5356559 - Optically active piperazinyl derivatives as liquid crystals (1994-10-18),
14. 5346647 - Cyclohexane compounds used in liquid crystalline mixtures (1994-09-13),
15. 5326498 - Aromatic esters and liquid crystal mixtures containing same (1994-07-05),

Title: Stephen Kelly – Innovator in Liquid Crystal Technologies

Introduction

Stephen Kelly, a prolific inventor based in Mohlin, Switzerland, has made significant contributions to the field of liquid crystal technologies. With a remarkable portfolio of 31 patents, his innovative work focuses on optically active compounds that facilitate advancements in optical components and electrooptical applications.

Latest Patents

Among his latest patents is the invention of "Optically Active Smectic Photo-Cross-Linkable Liquid Crystals." This invention addresses the need for compounds that exhibit ferroelectric properties and can be photo-cross-linked, enhancing their utility in optical components. Another notable patent is for "Chiral Dioxolanes," which involves chiral dopants designed for liquid crystalline mixtures that have important applications in optical and electro-optical fields.

Career Highlights

Stephen Kelly's career includes influential roles at prominent companies like Hoffmann-La Roche Inc. and Rolic AG, where he applied his expertise to drive innovation in liquid crystal technologies. His extensive experience in the industry has allowed him to develop valuable patents that contribute to advancements in optical materials.

Collaborations

Throughout his career, Stephen has collaborated with notable figures in the field, including Martin Schadt and Richard Buchecker. These partnerships have fostered creativity and innovation, further propelling the development of groundbreaking technologies.

Conclusion

Stephen Kelly's contributions to liquid crystal technology through his numerous patents underscore his role as a leading inventor in the field. His work not only pushes the boundaries of innovation but also paves the way for future developments in optical and electrooptical applications.

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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