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For the Inventor, By the Inventor

Manchester, United Kingdom

Denis Robert Ridyard

USPTO Granted Patents = 15

Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 64(Granted Patents)


Location History:

  • Manchester, EN (1976 - 1978)
  • Manchester, GB (1979 - 1982)
  • Hazel Grove, GB (1989)
  • Stockport, GB (1991 - 1992)

Company Filing History:

goldMedal15 out of 3,840 
 
Imperial Chemical Industries Limited
 patents

Years Active: 1976-1992

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15 patents (USPTO):Explore Patents
1. 5175261 - Azopyridone dyes (1992-12-29),
2. 5171852 - Triphenodioxazine reactive dyes having sulphonate ester groups (1992-12-15),
3. 5019134 - Reactive dyes (1991-05-28),
4. 4881943 - Disperse dyes: nitro-thiophene azo dyes for bright blue shades on (1989-11-21),
5. 4330468 - Water soluble monoazo dyes for nylon (1982-05-18),
6. 4213759 - Coloration process: mixed dyes for differential-dyeing nylon mixtures (1980-07-22),
7. 4145340 - Water-soluble reactive monoazo dye containing a nonylphenoxy, (1979-03-20),
8. 4083858 - Anthraquinone dyes (1978-04-11),
9. 4075200 - 4(2'-Nitro-4'-sulfoanilino) phenyl azo hydroxyphenyl dyes (1978-02-21),
10. 4067865 - Water-soluble diazotized amino azo dyestuff coupled with an amino-phenyl (1978-01-10),
11. 4060383 - Monoazo dyestuffs (1977-11-29),
12. 4039528 - Sulphonic acid-, hydroxy-substituted phenyl azo-naphthyl azo-N-aryl (1977-08-02),
13. 3996221 - Dyestuffs (1976-12-07),
14. 3993440 - Coloration with azo carboxy pyrazolone (1976-11-23),
15. 3935248 - Anthraquinone dyes (1976-01-27),

Title: The Innovative Contributions of Denis Robert Ridyard

Introduction

Denis Robert Ridyard is a notable inventor based in Manchester, England, renowned for his significant contributions to the field of dyes and chemical compounds. With a total of 15 patents to his name, Ridyard has made advancements that cater to a variety of industrial applications, particularly in textiles and materials.

Latest Patents

Two of his most recent patents exemplify his innovative spirit and expertise. The first is focused on Azopyridone dyes—water-soluble compounds that are effective for coloring materials such as cellulosic fabrics, animal furs, and leather. This patent presents a novel approach to dyeing, leveraging a specific chemical formula to achieve superior results. The second patent involves Triphenodioxazine reactive dyes, which are particularly useful for dyeing cellulosic fibers. These dyes incorporate sulphonate ester groups and can be formulated with various radicals, enhancing their versatility in the dyeing process.

Career Highlights

Denis Ridyard has spent his career at Imperial Chemical Industries Limited, a company known for its innovative contributions to chemical manufacturing. His work in developing advanced dye compounds has had a lasting impact on the textile industry, improving both the efficiency and quality of dyeing processes.

Collaborations

Throughout his career, Ridyard has collaborated with esteemed coworkers, including David Brierley and John Stuart Manson. These partnerships have enabled the combination of diverse expertise and insights, fostering an environment where innovative solutions can thrive.

Conclusion

Denis Robert Ridyard's contributions to the field of chemical dyes highlight his role as a pioneering inventor. With an impressive portfolio of patents, his work continues to influence manufacturing practices in textile coloring and beyond. His innovative spirit serves as an inspiration for future generations of inventors in the chemical sciences.

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