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For the Inventor, By the Inventor

Minneapolis, MN, United States of America

David Roy Witzke

USPTO Granted Patents = 14

Average Co-Inventor Count = 5.7

ph-index = 13

Forward Citations = 663(Granted Patents)


Location History:

  • Cambridge, MA (US) (2000)
  • Minneapolis, MN (US) (1997 - 2002)
  • Oskaloosa, IA (US) (2001 - 2006)

Company Filing History:

goldMedal13 out of 867 
 
Cargill Inc.
 patents
silverMedal1 out of 2 
 
Cargill, Incorported
 patents

Years Active: 1997-2006

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14 patents (USPTO):Explore Patents
1. 7144977 - Lactic acid processing; methods; arrangements; and, products (2006-12-05),
2. 6534679 - Lactic acid processing; methods; arrangements; and, products (2003-03-18),
3. 6495631 - Impact modified melt-stable lactide polymer compositions and processes for manufacture thereof (2002-12-17),
4. 6353086 - Lactic acid residue containing polymer composition and product having improved stability, and method for preparation and use thereof (2002-03-05),
5. 6320077 - Lactic acid processing; methods; arrangements; and, product (2001-11-20),
6. 6291597 - Viscosity-modified lactide polymer composition and process for manufacture thereof (2001-09-18),
7. 6229046 - Lactic acid processing methods arrangements and products (2001-05-08),
8. 6160173 - Process for the recovery of lactic acid esters and amides from aqueous (2000-12-11),
9. 616017 - Process for the recovery of lactic acid esters and amides from aqueous (2000-12-12),
10. 6114495 - Lactic acid residue containing polymer composition and product having (2000-09-05),
11. 5998552 - Viscosity-modified lactide polymer composition and process for (1999-12-07),
12. 5922832 - Impact modified melt-stable lactide polymer compositions and processes (1999-07-13),
13. 5798435 - Viscosity-modified lactide polymer composition and process for (1998-08-25),
14. 5594095 - Viscosity-modified lactide polymer composition and process for (1997-01-14),

Title: David Roy Witzke: Innovator in Lactic Acid Processing

Introduction

David Roy Witzke is a notable inventor based in Minneapolis, MN (US), recognized for his contributions to the field of lactic acid processing. With a total of 14 patents to his name, Witzke has made significant advancements in the methods and arrangements for processing lactic acid and lactate salt mixtures.

Latest Patents

Witzke's latest patents focus on innovative techniques for processing lactic acid/lactate salt mixtures. These techniques are designed to optimize the separation of lactic acid and lactate streams from fermentation broths, particularly those produced at a pH of 4.8 or lower. The methods he developed provide preferred techniques for the separation and processing of each stream, enhancing the efficiency of lactic acid production.

Career Highlights

Throughout his career, Witzke has worked with prominent companies, including Cargill Inc. and Cargill, Incorporated. His experience in these organizations has contributed to his expertise in the field of bioprocessing and fermentation technology.

Collaborations

Witzke has collaborated with notable professionals in his field, including Jeffrey John Kolstad and Patrick R Gruber. These collaborations have further enriched his work and contributed to the development of innovative solutions in lactic acid processing.

Conclusion

David Roy Witzke stands out as a significant figure in the innovation of lactic acid processing technologies. His patents and collaborations reflect his commitment to advancing this important area of research and development.

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