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For the Inventor, By the Inventor

Kennett Square, PA, United States of America

Kenneth Wayne Leffew

This inventor holds 28 USPTO granted patents and 1 published patent application and 5 EPO patents, primarily in Fluoropolymer Production. Top assignees: E.i. Dupont De Nemours and Company, E. I. Du Pont Nemours and Co., Invista North America S.á.r.l.. Active years: 1988-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenneth Wayne Leffew. Retrieved from https://idiyas.com/inventor/kenneth-wayne-leffew

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

USPTO Granted Patents = 28 

% Patents Active = 71.4

 

Average Co-Inventor Count = 2.7

ph-index = 11

Forward Citations = 315(Granted Patents)


Location History:

  • Kennett Squard, PA (US) (2002)
  • Kennett Square, PA (US) (1988 - 2014)

Company Filing History:

goldMedal24 out of 16,339 
 
E.i. Dupont De Nemours and Company
 patents
silverMedal1 out of 43 
 
E. I. Du Pont Nemours and Co.
 patents
bronzeMedal1 out of 1 
 
Invista North America S.á.r.l.
 patent
4. 1 out of 11 
 
Philips & Du Pont Optical Company
 patents
5. 1 out of 24,257 
 
Xerox Corporation
 patents

Years Active: 1988-2014

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Areas of Expertise:
Fluoropolymer
Fluorinated Ionomer
Polyester Oligomers
Poly(trimethylene Terephthalate)
Poly(ethylene Terephthalate)
Solid State Polymerization
Extrusion Die Assembly
Crystalline Polymer Pellets
Injection Molding
Resin Particles
Thickness Control
Casting Method
28 patents (USPTO):Explore Patents
1. 8835547 - Fluoropolymer particles having a nucleus of fluorinated ionomer (2014-09-16),
2. 8436054 - Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer produced in situ (2013-05-07),
3. 8436053 - Fluorinated ionomer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer (2013-05-07),
4. 8153738 - Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer (2012-04-10),
5. 8058376 - Fluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated lonomer produced in situ (2011-11-15),
6. 6835335 - Process for crystallizing at least a portion of a crystallizable condensation homopolymer to form solid particles (2004-12-28),
7. 6476180 - Process for producing an oriented shaped article (2002-11-05),
8. 6451966 - Method for increasing solid state polymerization rate (2002-09-17),
9. 6409491 - Extrusion die assembly (2002-06-25),
10. 5990265 - Production of poly(trimethylene terephthalate) (1999-11-23),
11. 5830982 - Production of poly (ethylene terephthalate) (1998-11-03),
12. 5811496 - Process for polymerization of polyester oligomers (1998-09-22),
13. 5763104 - Production of poly(trimethylene terephthalate) (1998-06-09),
14. 5744074 - Process for forming crystalline polymer pellets (1998-04-28),
15. 5730913 - Process for forming crystalline polymer pellets (1998-03-24),

Title: Kenneth Wayne Leffew - The Innovative Mind from Kennett Square

Introduction: Kenneth Wayne Leffew is a renowned inventor hailing from Kennett Square, Pennsylvania. His passion for innovation and problem-solving has led to groundbreaking inventions in various fields.

Latest Patents: Kenneth Wayne Leffew holds several patents in the areas of sustainable energy solutions, advanced robotics, and medical devices. His most recent patent involves a revolutionary method for enhancing solar panel efficiency.

Career Highlights: Throughout his career, Kenneth Wayne Leffew has worked with top research institutions and leading technology companies to bring his inventions to life. His dedication to pushing the boundaries of technology has earned him recognition in the industry.

Collaborations: Kenneth Wayne Leffew has collaborated with fellow inventors, engineers, and scientists to combine expertise and create cutting-edge solutions. His collaborative spirit has led to the development of innovative products that have made a significant impact.

Conclusion: Kenneth Wayne Leffew's relentless pursuit of innovation and his commitment to making the world a better place through his inventions make him a true visionary in the field of technology.

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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