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Bloomsbury, NJ, United States of America

Koh-I-Noor Rapidograph, Inc.

Calculating rank

USPTO Granted Patents = 52

Trademarks = 8

Forward Citations = 615

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45 inventors (with patents filed for the assignee):

Gerold Anderka (17 out of 22 patents)

Lasse Kuparinen (6 out of 6 patents)

Bernhard Bruhn (5 out of 6 patents)

4. Walter Jozat (4 out of 10 patents)

5. Gerhard DeBlitz (4 out of 4 patents)

6. Fortunato J Micale (3 out of 11 patents)

7. Peter Felgentreu (3 out of 5 patents)

8. Rolf Paschen (3 out of 4 patents)

9. Joachim Brandt (3 out of 3 patents)

10. Bernd Willimczik (3 out of 3 patents)

11. Axel Mikuteit (3 out of 3 patents)

12. John P Leuenberger (3 out of 3 patents)

13. Rolf Martens (2 out of 4 patents)

14. Werner Zuchner (2 out of 3 patents)

15. Hans-Joachim Ritter (2 out of 3 patents)

Core Competencies:

Writing Instrument

Drafting Device

Tubular Pen

Pressure Balance

Fountain Pen

Ink Cartridge

Drawing Pen

Technical Pen

Lettering Device

Capillary Tube

Automatic Drafting

Colorant Dispersions

52 patents: Sort by Forward Citations

1. 5004365 - Drop-weight and tubular writing instrument (1991-04-02),

2. 5000606 - Drop-weight and tubular writing instrument (1991-03-19),

3. 4930921 - Tubular writting pen with superposed pressure equalization chambers (1990-06-05),

4. 4913283 - Case for drawing boards (1990-04-03),

5. 4900176 - Pivotable pen tip (1990-02-13),

6. 4891245 - Electrophoretic display particles and a process for their preparation (1990-01-02),

7. 4833490 - Writing element with exchange mechanism (1989-05-23),

8. 4769914 - Lettering device (1988-09-13),

9. 4764045 - Writing instrument with reservoir having perpendicular fibers (1988-08-16),

10. 4761090 - Tubular writing pen tip with adjustment means (1988-08-02),

11. 4753546 - Pressure balanced stylographic pen (1988-06-28),

12. 4729685 - Writing instrument with press mechanism and magnetic catch (1988-03-08),

13. 4669617 - Pen holder device (1987-06-02),

14. 4665107 - Pigment encapsulated latex aqueous colorant dispersions (1987-05-12),

15. D287603 - Writing pen (1987-01-06),

Company Overview

Koh-I-Noor Rapidograph, Inc. is a prominent manufacturer specializing in high-quality writing instruments and drafting devices. Based in Bloomsbury, New Jersey, the company is renowned for its innovative products, including technical pens, fountain pens, and ink cartridges. Koh-I-Noor's commitment to precision and performance is evident in its advanced tubular pen technology and pressure balance systems, catering to professionals and artists alike. The organization continues to push the boundaries of design and functionality in the writing instrument sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

52 Patents

#1 in Bloomsbury, NJ

#276 in New Jersey

#6,771 in US

#13,564 in the World

Bloomsbury, NJ, United States of America

Koh-I-Noor Rapidograph, Inc.

Forward Citations = 615

45 inventors:

Gerold Anderka (17 out of 22 patents)

Lasse Kuparinen (6 out of 6 patents)

Bernhard Bruhn (5 out of 6 patents)

4. Walter Jozat (4 out of 10 patents)

5. Gerhard DeBlitz (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Koh-I-Noor Rapidograph, Inc.. Retrieved from https://idiyas.com/company/koh-i-noor-rapidograph

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

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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