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For the Inventor, By the Inventor

Bury, United Kingdom

Andrew H Renfrew

This inventor holds 13 USPTO granted patents. Top assignees: Imperial Chemical Industries Limited, Zeneca Limited, Wiggins Teape Limited. Active years: 1976-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Andrew H Renfrew. Retrieved from https://idiyas.com/inventor/andrew-h-renfrew

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 5

Forward Citations = 63(Granted Patents)


Location History:

  • Manchester, EN (1976 - 1978)
  • Manchester, GB (1979)
  • Blackley, GB (1980)
  • Bury, GB (1983 - 1994)
  • Lancashire, GB (1984 - 1997)
  • Greenmount, GB (1998)

Company Filing History:

goldMedal9 out of 3,840 
 
Imperial Chemical Industries Limited
 patents
silverMedal3 out of 854 
 
Zeneca Limited
 patents
bronzeMedal1 out of 14 
 
Wiggins Teape Limited
 patents

Years Active: 1976-1998

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13 patents (USPTO):Explore Patents
1. 5820661 - Ink compositions containing disazo dyes (1998-10-13),
2. 5703215 - Water-soluble dyes which are polymerizable containing molecules which (1997-12-30),
3. 5474580 - Chemical compounds (1995-12-12),
4. 5306813 - Reactive dyes having a bulky linker group (1994-04-26),
5. 5171852 - Triphenodioxazine reactive dyes having sulphonate ester groups (1992-12-15),
6. 4542213 - Triphenodioxazine acid dyes (1985-09-17),
7. 4512773 - Cationic triphendioxazine dyes, methods for their manufacture and their (1985-04-23),
8. 4472575 - Triphendioxazine dyestuffs (1984-09-18),
9. 4391754 - Anthraquinone compounds (1983-07-05),
10. 4182720 - Process for the preparation of homogentisic lactone (1980-01-08),
11. 4147510 - Coloration process (1979-04-03),
12. 4080369 - Disperse anthraquinone dyestuffs (1978-03-21),
13. 3963853 - Pressure sensitive transfer sheet (1976-06-15),

Title: Andrew H Renfrew: Pioneering Technology Innovator

Introduction

Andrew H Renfrew's unwavering dedication to innovation has established him as a visionary inventor in the technology sector. His groundbreaking contributions have shaped the landscape of innovation globally, inspiring future generations of inventors.

Latest Patents

Renfrew's latest patents include ink compositions containing disazo dyes. These patents encompass water-soluble dyes that are polymerizable and revolutionize the coloration process of substrates, especially textiles.

Career Highlights

With an impressive portfolio of 13 patents, Renfrew has made significant strides in the field of technology. He has worked with renowned companies such as Imperial Chemical Industries Limited and Zeneca Limited, where his innovative spirit has flourished.

Collaborations

Renfrew's work has been fueled by collaborations with industry experts such as Stephen B Bostock and Andrew Paul Shawcross. Their collective efforts have led to groundbreaking inventions that have pushed the boundaries of technological innovation.

Conclusion

Andrew H Renfrew's relentless pursuit of excellence and passion for innovation have cemented his legacy as a pioneering technology innovator. His contributions not only benefit the present but also inspire future inventors to push the boundaries of what is possible in the realm of technology.

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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