Company Filing History:

9 out of 756

Allied Chemical Corporation

patents

where one patent can have more than one assignee

Years Active: 1976-2007

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20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7166752 - Decomposition of cumene oxidation product (2007-01-23),

2. 5889142 - Selective polyamide recovery from multi-component materials (1999-03-30),

3. 5131984 - High quality phenol rectification with energy recovery (1992-07-21),

4. 4996036 - Abatement of NO.sub.x from hydroxylamine disulfonate process (1991-02-26),

5. 4851086 - Production of high purity phenol by steam distillation (1989-07-25),

6. 4767503 - Removal of light impurities from caprolactam by distillation with water (1988-08-30),

7. 4692321 - Oxidation of ammonia over a mixed catalyst bed of cobalt and aluminum (1987-09-08),

8. 4582642 - Recovery of caprolactam from process residues (1986-04-15),

9. 4410755 - Method to purify alpha-methyl styrene prior to catalytic hydrogenation (1983-10-18),

10. 4389339 - Process for making a cobalt oxide catalyst (1983-06-21),

11. 4311642 - Recovery of caprolactam from nylon 6 oligomers (1982-01-19),

12. 4233279 - Process for the synthesis of ammonium nitrite (1980-11-11),

13. 4200553 - Process for producing cyclohexanone (1980-04-29),

14. 4164515 - Production of cyclohexanone (1979-08-14),

15. 4162267 - Production of cyclohexanone (1979-07-24),

Title: **Innovations and Contributions of William B Fisher in Chester, VA**

Introduction

William B Fisher is a prominent inventor located in Chester, VA, known for his significant contributions to chemical engineering through his 20 patents. His innovative processes have advanced the fields of chemical production and waste material recovery, showcasing his expertise and commitment to safety and effectiveness in industrial applications.

Latest Patents

Among William B Fisher's latest patents are remarkable processes that improve the decomposition of cumene oxidation products. One notable invention involves a method for producing phenol, acetone, and alpha-methyl styrene with enhanced operational safety and reduced by-product formation. This process includes mixing the oxidation product with an acid catalyst and employing a carefully controlled temperature range for effective decomposition.

Another recent patent focuses on the selective recovery of polyamides from multi-component waste materials. This innovative approach utilizes a specific mixture of caprolactam and water to separate nylon 6 and nylon 6,6 from complex waste streams, allowing for the recovery and reuse of valuable materials in applications such as molding and carpet fibers.

Career Highlights

William B Fisher has had a notable career with significant tenure at Allied Chemical Corporation and Allied Corporation. Throughout his professional journey, he has developed and patented several processes that address challenges in chemical manufacturing and waste management. His work has not only contributed to his companies' success but also provided solutions that benefit the broader industry.

Collaborations

During his career, Fisher collaborated with esteemed colleagues such as Lamberto Crescentini and Jan F Van Peppen. These partnerships have allowed for the exchange of ideas and methodologies that enhance the quality and scope of research and innovation, resulting in successful patent applications and advancements in their respective fields.

Conclusion

William B Fisher's impactful patents and collaborative efforts illustrate a dedicated inventor who continually strives to improve chemical processes and materials recovery. His innovations not only enhance operational safety but also promote sustainability by enabling the recycling of valuable resources. Fisher's legacy continues to inspire future generations of inventors and industry professionals in the field of chemical engineering.

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