logo

For the Inventor, By the Inventor

Wilmington, DE, United States of America

Ludwig A Hartmann

USPTO Granted Patents = 15

Average Co-Inventor Count = 1.4

ph-index = 6

Forward Citations = 135(Granted Patents)


Company Filing History:

goldMedal13 out of 432 
 
Ici Americas, Inc.
 patents
silverMedal2 out of 38 
 
Ici United States Inc.
 patents

Years Active: 1976-1991

Loading Chart...
15 patents (USPTO):Explore Patents
1. 5053516 - Synthesis of 2-substituted-5-methylpyridines from (1991-10-01),
2. 4965394 - Difunctional polyfluoroaromatic derivatives and a process of preparing (1990-10-23),
3. 4866185 - Difunctional polyfluoroaromatic derivatives and a process of preparing (1989-09-12),
4. 4783547 - Polyfluoroaromatic nitriles (1988-11-08),
5. 4687854 - Bispiperidone precursor of 2-substituted-5-methyl-pyridines (1987-08-18),
6. 4658031 - Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor (1987-04-14),
7. 4584380 - Synthesis of 2-substituted-5-methyl-pyridines and intermediates therefor (1986-04-22),
8. 4473696 - Synthesis of 2-substituted-5-methyl-pyridines (1984-09-25),
9. 4280965 - Preparation of cyano substituted benzyl esters (1981-07-28),
10. 4156068 - High molecular weight polyethersulfones (1979-05-22),
11. 4153621 - Glycidyl ethers derived from 3,3',5,5'-tetraalkyl-4,4'-dihydroxybiphenyl (1979-05-08),
12. 4073802 - Process for the preparation and purification of (1978-02-14),
13. 4072656 - Glycidyl ethers derived from 3,3',5,5'-tetraalkyl-4,4'-dihydroxybiphenyl (1978-02-07),
14. 4060532 - Halogenated dioxolane tranquilizers (1977-11-29),
15. 3996376 - Halogenated dioxolane tranquilizers (1976-12-07),

Inventor Ludwig A Hartmann: Innovating in Chemical Synthesis

Introduction

Ludwig A Hartmann, based in Wilmington, Delaware, is an accomplished inventor known for his significant contributions to the field of chemical synthesis, with a remarkable portfolio consisting of 15 patents. His work primarily focuses on the development of compounds that are essential in the manufacturing of herbicides and other chemical applications.

Latest Patents

Among his latest innovations, Hartmann has developed a synthesis method for 2-substituted-5-methylpyridines using 3-Methyl-2-alkylamino-1-halo-1-cyano cyclobutanes. This process involves cleaving these compounds under acidic conditions to create 2-halo-4-formylvaleronitrile and 4-formyl-2-pentenonitrile, which can subsequently be cyclized into valuable pyridine derivatives. These derivatives play a critical role as starting materials in the production of herbicides, including fluazifop-butyl.

Another notable patent involves the creation of difunctional polyfluoroaromatic derivatives. These compounds are characterized by specific functional groups and can be synthesized through reactions involving pentafluorobenzonitrile and Grignard reagents in various solvents. This innovative process enables the selective production of different cyano compounds depending on the solvent used.

Career Highlights

Ludwig A Hartmann has had a noteworthy career, with significant contributions during his tenure at prominent companies such as ICI Americas, Inc. and ICI United States Inc. His deep understanding of chemical processes has made him a valuable asset in the research and development sectors of these organizations.

Collaborations

Throughout his career, Hartmann has collaborated with distinguished coworkers including John F. Stephen and Richard L. West. These partnerships have enhanced his research capabilities and expanded his contributions to the field of chemical innovation.

Conclusion

Ludwig A Hartmann exemplifies the spirit of innovation through his extensive patent portfolio and impactful advancements in chemical synthesis. His work not only contributes to scientific knowledge but also plays a crucial role in advancing industrial practices, proving the importance of inventors in shaping our modern world.

This text is generated by artificial intelligence and may not be accurate.
Please report any incorrect information to support@idiyas.com
Loading…