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For the Inventor, By the Inventor

Wilmington, DE, United States of America

Walter M Kruse

This inventor holds 19 USPTO granted patents. Top assignees: Ici Americas, Inc., Ici United States Inc., Other. Active years: 1976-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Walter M Kruse. Retrieved from https://idiyas.com/inventor/walter-m-kruse

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

USPTO Granted Patents = 19

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 8

Forward Citations = 164(Granted Patents)


Location History:

  • New Castle County, DE (US) (1981)
  • Wilmington, DE (US) (1976 - 1988)

Company Filing History:

goldMedal13 out of 432 
 
Ici Americas, Inc.
 patents
silverMedal3 out of 38 
 
Ici United States Inc.
 patents
bronzeMedal3 out of 834,513 
Other
 patents

Years Active: 1976-1988

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19 patents (USPTO):Explore Patents
1. 4734502 - Process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine (1988-03-29),
2. 4645839 - Sulphur dehydrogenation process to yield 5-methyl-2-pyridone (1987-02-24),
3. 4487978 - High yield process for preparing 4,4'-biphenol and (1984-12-11),
4. 4487977 - High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol (1984-12-11),
5. 4482755 - High yield process for preparing 4,4'-biphenol and para-alkylbenzenes (1984-11-13),
6. 4435586 - Etherification process for hexitols and anhydrohexitols (1984-03-06),
7. 4369316 - 3,1 Benzoxazine 2,4-dione (1983-01-18),
8. 4326072 - Ruthenium catalyzed hydrogenation of D-glucuronic acid (1982-04-20),
9. 4314078 - Process for preparing (1982-02-02),
10. 4313000 - Process for preparing (1982-01-26),
11. 4292451 - High mannitol process (alkaline hydrogenation in presence of alkali (1981-09-29),
12. 4173514 - High mannitol process (enzymatic isomerization) (1979-11-06),
13. 4120824 - Tetravalent manganese-carbon oxidation catalysts and methods of their (1978-10-17),
14. 4072628 - Regeneration of supported ruthenium catalyst (1978-02-07),
15. 4029878 - Process for preparing mannitol from glucose (1977-06-14),

Title: Walter M Kruse: Innovator in Chemical Processes

Introduction: Walter M Kruse, based in Wilmington, DE, has made significant contributions to the field of chemistry through his innovative inventions. With a portfolio of 19 patents, Kruse has focused on processes that enhance chemical synthesis, reflecting his commitment to advancing the industry.

Latest Patents: Among his notable patents, Kruse developed a process for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidine. This compound is synthesized from acetone and ammonia with the aid of catalytic amounts of diverse active halogen compounds, including sulfonylhalides and beta-halonitriles. Additionally, he created a sulphur dehydrogenation process that efficiently yields 5-methyl-2-pyridone from its corresponding 3,4-dihydro compound. This method, which takes place at approximately 180 degrees Celsius or lower, is particularly advantageous as it provides an intermediate useful for various pyridyloxyphenoxy herbicides.

Career Highlights: Throughout his career, Walter M Kruse has held positions at several companies, including Ici Americas, Inc. His work has played a crucial role in the development of new chemical methodologies, solidifying his reputation as a forward-thinking inventor in the field.

Collaborations: In his career, Kruse has collaborated with notable colleagues such as John F Stephen and Leon W Wright. Together, they have contributed to advancements in chemical processes, showcasing the importance of teamwork in innovation.

Conclusion: Walter M Kruse exemplifies the spirit of innovation through his extensive contributions to chemical synthesis and processes. His patents not only demonstrate his expertise but also provide valuable resources for the chemical industry, ensuring the advancement of technology in this essential field.

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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