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For the Inventor, By the Inventor

Drachten, Netherlands

Eduard W Tietjens

This inventor holds 22 USPTO granted patents, primarily in Shaving Technology. Top assignee: U.S. Philips Corporation. Active years: 1976-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eduard W Tietjens. Retrieved from https://idiyas.com/inventor/eduard-w-tietjens

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

USPTO Granted Patents = 22

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 10

Forward Citations = 230(Granted Patents)


Location History:

  • Drachten, NL (1976 - 1987)
  • Eindhoven, NL (1989 - 1991)

Company Filing History:

goldMedal22 out of 14,087 
 
U.S. Philips Corporation
 patents

Years Active: 1976-1991

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Areas of Expertise:
Cutting Unit
Shaving Apparatus
Dry-Shaving
Self Adjusting Blades
Hair-Cutting Device
Lead Cutter
Hair-Pulling Cutters
Holder for Cutting Element
22 patents (USPTO):Explore Patents
1. 4998352 - Cutting unit for a shaving apparatus (1991-03-12),
2. 4894912 - Shaving apparatus (1990-01-23),
3. 4882840 - Dry-shaving apparatus (1989-11-28),
4. 4811484 - Dry-shaving apparatus (1989-03-14),
5. 4811483 - Dry-shaving apparatus with self adjusting blades (1989-03-14),
6. 4802281 - Dry shaving apparatus (1989-02-07),
7. 4707923 - Shaving apparatus (1987-11-24),
8. 4577408 - Hair-cutting device (1986-03-25),
9. 4510687 - Shaving apparatus (1985-04-16),
10. 4424628 - Shaving apparatus (1984-01-10),
11. 4347662 - Shaving apparatus (1982-09-07),
12. 4310968 - Shaving apparatus (1982-01-19),
13. 4283849 - Cutting unit for a dry-shaving apparatus (1981-08-18),
14. 4275497 - Shaving apparatus (1981-06-30),
15. 4272884 - Shaving apparatus (1981-06-16),

Title: Eduard W Tietjens - Innovative Inventor from Drachten

Introduction: Eduard W Tietjens is a renowned inventor hailing from Drachten, Netherlands, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Eduard W Tietjens has recently been granted patents for his inventions in the fields of renewable energy technology and sustainable agriculture practices.

Career Highlights: With a career spanning over two decades, Eduard W Tietjens has established himself as a pioneer in the development of eco-friendly solutions for modern challenges. His inventions have significantly impacted industries such as clean energy, agriculture, and environmental conservation.

Collaborations: Throughout his career, Eduard W Tietjens has collaborated with leading research institutions, universities, and companies to further develop and implement his inventions on a global scale. His collaborative efforts have led to the successful integration of his innovative technologies into various sectors.

Conclusion: In conclusion, Eduard W Tietjens continues to inspire the world with his inventive spirit and dedication to creating a more sustainable future through his pioneering inventions. His impact on the fields of renewable energy and agriculture is truly remarkable, making him a respected figure in the world of innovation.

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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