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For the Inventor, By the Inventor

Wilmington, DE, United States of America

Leon S Scott

USPTO Granted Patents = 6

Average Co-Inventor Count = 2.7

ph-index = 4

Forward Citations = 145(Granted Patents)


Company Filing History:

goldMedal6 out of 16,338 
 
E.i. Dupont De Nemours and Company
 patents

Years Active: 1979-2003

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6 patents (USPTO):Explore Patents
1. 6599398 - Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine (2003-07-29),
2. 6248926 - Recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitirle and PRI (2001-06-19),
3. 5596074 - Method for controlling color formation during polytetramethylene ether (1997-01-21),
4. 5288903 - Preparation of 3-pentenoic acid and a catalyst therefore (1994-02-22),
5. 5254255 - Enhanced extraction of valeric acid or caproic acid from aqueous mixtures (1993-10-19),
6. 4158738 - Process for the production of fiber-grade terephthalic acid (1979-06-19),

Title: The Innovations of Leon S. Scott

Introduction

Leon S. Scott is a notable inventor based in Wilmington, DE (US). He has made significant contributions to the field of chemical engineering, particularly in the recovery and purification of various compounds. With a total of 6 patents to his name, Scott's work has had a considerable impact on industrial processes.

Latest Patents

Among his latest patents is a method for the recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile, and hexamethylenediamine. This innovative process utilizes two sequential distillations to achieve a purified adiponitrile (ADN). The first distillation operates at a head pressure that allows at least 7% of the ADN to enter the distillate, along with bishexamethylenetriamine (BHMT) and 2-cyanocyclopentylideneimine (CPI). The second distillation further refines the distillate to remove the majority of BHMT and CPI, resulting in ADN that is substantially free of these impurities.

Another significant patent involves the recovery of hexamethylenediamine (HMD) with low polarographically reducible impurities (PRI) from mixtures of HMD, aminocapronitrile, and PRI. This method employs fractional distillation, where the temperature in the rectifying zone of the distillation column varies sigmoidally along its length. This variation forces a major portion of the PRI to co-distill with the aminocapronitrile, enhancing the purity of the final product.

Career Highlights

Leon S. Scott has built a successful career at E.I. DuPont de Nemours and Company, where he has been able to apply his innovative ideas in practical settings. His work has not only advanced the company's technological capabilities but has also contributed to the broader field of chemical engineering.

Collaborations

Throughout his career, Scott has collaborated with esteemed colleagues such as John Joseph Ostermaier and Roy W. Sommers. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Leon S. Scott's contributions to the field of chemical engineering through his patents and innovative processes have made a lasting impact. His work continues to influence the industry and showcases the

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