Wilmington, DE, United States of America

Johannes Pfenninger

This inventor holds 10 USPTO granted patents. Top assignee: Ciba-Geigy Corporation. Active years: 1987-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Johannes Pfenninger. Retrieved from https://idiyas.com/inventor/johannes-pfenninger

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 7

Forward Citations = 110(Granted Patents)

Location History:

Marly, CH (1987 - 1988)
Wilmington, DE (US) (1989 - 1991)
Rechthalten, CH (1993)

Company Filing History:

10 out of 6,858

Ciba-Geigy Corporation

patents

Years Active: 1987-1993

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5229515 - Process for preparing modified .beta.-quinacridone pigment (1993-07-20),

2. 5025041 - Pearlescent coating compositions (1991-06-18),

3. 4895949 - Process for preparation of quinacridone solid solutions (1990-01-23),

4. 4895948 - Process for preparation of opaque quinacridones (1990-01-23),

5. 4810802 - Process for the preparation of brominated pyrrolo-[3,4-c]-pyrroles and (1989-03-07),

6. 4778899 - Process for the preparation of pyrrolo (3,4-c) pyrroles (1988-10-18),

7. 4749795 - Phenyl substituted pyrrolinones (1988-06-07),

8. 4720305 - Mixtures of pigments (1988-01-19),

9. 4681971 - Phenyl substituted aminodicarboxylate esters (1987-07-21),

10. 4659775 - Process for the preparation of pyrrolo[3,4-c]pyrroles, and novel (1987-04-21),

Title: Johannes Pfenninger: Innovator from Wilmington

Introduction: Johannes Pfenninger is a renowned inventor based in Wilmington, DE, known for his groundbreaking contributions to various fields.

Latest Patents: Johannes Pfenninger holds several patents in the areas of renewable energy technologies, medical devices, and advanced materials.

Career Highlights: With a career spanning over two decades, Pfenninger has worked with leading research institutions and companies to develop innovative solutions that have had a significant impact on society.

Collaborations: Throughout his career, Johannes Pfenninger has collaborated with top universities, research institutions, and companies to bring his inventions to life and drive forward technological advancements.

Conclusion: Johannes Pfenninger's dedication to innovation and his passion for creating solutions to complex challenges have solidified his reputation as a pioneering inventor in Wilmington and beyond.

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]