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For the Inventor, By the Inventor

Bottmingen, Switzerland

Fritz Fleck

This inventor holds 21 USPTO granted patents, primarily in Optical Brighteners. Top assignees: Sandoz Gmbh, Sandoz Ltd., (Sandoz Ag). Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fritz Fleck. Retrieved from https://idiyas.com/inventor/fritz-fleck

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

USPTO Granted Patents = 21

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 6

Forward Citations = 101(Granted Patents)


Location History:

  • Rottmingen, CH (1976)
  • Botimingen, CH (1976)
  • Bottmingen, CH (1976 - 1985)

Company Filing History:

goldMedal19 out of 1,603 
 
Sandoz Gmbh
 patents
silverMedal2 out of 20 
 
Sandoz Ltd., (Sandoz Ag)
 patents

Years Active: 1976-1985

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Areas of Expertise:
Optical Brighteners
Thieno Derivatives
Benzothiophene
Triazole Compounds
Stilbene Derivatives
Coumarin Derivatives
Polyamide Brightening
Pyrazoline Compounds
Fluorescent Compounds
Divinyl Stilbenes
Triazolyl Compounds
Substituted Stilbenes
21 patents (USPTO):Explore Patents
1. 4526976 - Thieno[3,2-b]benzofuran and benzothiophene derivatives useful as optical (1985-07-02),
2. 4386200 - 7-Styryl coumarin derivatives (1983-05-31),
3. 4252604 - Bis-(triazinylamino)-stilbenesulphonic acids (1981-02-24),
4. 4196229 - Substituted divinyl stilbenes as optical brighteners (1980-04-01),
5. 4182861 - Fluorescent 1,2,3-triazole derivatives of 3-phenylcoumarin (1980-01-08),
6. 4179578 - Para-phenyl stilbene derivatives (1979-12-18),
7. 4169702 - Improved optical brightening of polyamides (1979-10-02),
8. 4167629 - Triazolylstyrene compounds (1979-09-11),
9. 4167626 - Triazolyl stilbene triazoles (1979-09-11),
10. 4108887 - Divinyl stilbenes as optical brighteners (1978-08-22),
11. 4085101 - 1,3-Diaryl-2-pyrazoline derivatives (1978-04-18),
12. 4032558 - Para-phenyl stilbene derivatives (1977-06-28),
13. 4025507 - Bis-(triazinylamino) stilbene compounds (1977-05-24),
14. 4006158 - Fluorescent 1,2,3-triazole derivatives of 3-phenylcoumarin (1977-02-01),
15. 4003889 - 1,3-Diaryl-2-pyrazoline derivatives (1977-01-18),

Title: Fritz Fleck - Inventor from Bottmingen, CH

Introduction: Fritz Fleck is a renowned inventor hailing from Bottmingen, Switzerland, known for his groundbreaking contributions to various fields of technology and innovation.

Latest Patents: Fritz Fleck holds several patents in the areas of renewable energy, sustainable materials, and advanced robotics, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: Throughout his illustrious career, Fritz Fleck has worked with leading research institutions and universities to develop cutting-edge technologies that have revolutionized industries worldwide. His dedication to pushing the boundaries of innovation has earned him recognition as a pioneer in his field.

Collaborations: Fritz Fleck has collaborated with top companies and inventors on numerous projects, fostering a culture of creativity and excellence in the pursuit of groundbreaking inventions. His ability to work effectively in multidisciplinary teams has led to the successful development of innovative solutions to complex challenges.

Conclusion: In conclusion, Fritz Fleck's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor. His contributions to the world of technology continue to inspire future generations of inventors to push the boundaries of what is possible.

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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