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For the Inventor, By the Inventor

Wayzata, MN, United States of America

Jeffrey John Kolstad

This inventor holds 73 USPTO granted patents and 3 EPO patents, primarily in Lactic Acid Processing (CPC class 5283). Top assignees: Cargill Inc., Amoco Corporation, Natureworks LLC. Active years: 1992-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jeffrey John Kolstad. Retrieved from https://idiyas.com/inventor/jeffrey-john-kolstad

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

Calculating rank
USPTO Granted Patents = 73

% Patents Active = 93.2

 

Average Co-Inventor Count = 5.0

ph-index = 35

Forward Citations = 3,962(Granted Patents)

Forward Citations (Not Self Cited) = 3,802(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Wayazata, MN (US) (1992)
  • Glen Ellyn, IL (US) (1992)
  • Wayzata, MN (US) (1993 - 2020)

Company Filing History:

goldMedal60 out of 912 
 
Cargill Inc.
 patents
silverMedal8 out of 1,528 
 
Amoco Corporation
 patents
bronzeMedal2 out of 28 
 
Natureworks LLC
 patents
4. 1 out of 3 
 
Cargill Dow Polymers LLC
 patents
5. 1 out of 2 
 
Cargill, Incorported
 patents
6. 1 out of 1 
 
Nature Work, LLP
 patent

Years Active: 1992-2020

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Areas of Expertise:
Lactic Acid
Fermentation
Polylactic Acid
Melt-Stable Polymer
Composition
Stereocomplex Fibers
Continuous Process
Crabtree-Negative Yeast
Melt-Stable Nonwoven Fabric
Optical Purity
Glycerides
Compostable Structures
73 patents (USPTO):Explore Patents
1. 10655151 - Process for fermenting sugars containing oligomeric saccharides (2020-05-19),
2. 9714438 - Process for fermenting sugars containing oligomeric saccharides (2017-07-25),
3. 9328364 - Process for fermenting sugars containing oligomeric saccharides (2016-05-03),
4. 8377353 - Process of making conjugate fibers (2013-02-19),
5. 8182725 - Methods for making polylactic acid stereocomplex fibers (2012-05-22),
6. 7700332 - Methods for the synthesis of lactic acid using crabtree-negative yeast transformed with the lactate dehydrogenase gene (2010-04-20),
7. 7229805 - Methods for the synthesis of lactic acid using crabtree-negative yeast transformed with the lactate dehydrogenase gene (2007-06-12),
8. 7144977 - Lactic acid processing; methods; arrangements; and, products (2006-12-05),
9. 7019170 - Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant (2006-03-28),
10. 6534679 - Lactic acid processing; methods; arrangements; and, products (2003-03-18),
11. 6495631 - Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof (2002-12-17),
12. 6485947 - Production of lactate using crabtree negative organisms in varying culture conditions (2002-11-26),
13. 6472559 - Lactic acid production, separation and/or recovery process (2002-10-29),
14. 6355772 - Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof (2002-03-12),
15. 6353086 - Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof (2002-03-05),

Title: The Inventor Jeffrey John Kolstad

Introduction: Jeffrey John Kolstad is a prolific inventor based in Wayzata, Minnesota. He is known for his innovative contributions in various fields.

Latest Patents: Jeffrey John Kolstad holds several patents in the areas of technology and engineering, showcasing his dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his career, Jeffrey John Kolstad has demonstrated a keen ability to transform ideas into tangible inventions that have the potential to impact industries and improve people's lives.

Collaborations: Jeffrey John Kolstad has collaborated with leading experts in the field, leveraging his skills and knowledge to create groundbreaking solutions to complex problems.

Conclusion: Jeffrey John Kolstad's passion for innovation and his relentless drive to create have solidified his reputation as a respected inventor in the Wayzata, MN area.

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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