Forward Citations = 6

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5 inventors (with patents filed for the assignee):

Josef Matkan (1 out of 14 patents)

John T Alston (1 out of 1 patent)

Julie M Alston (1 out of 1 patent)

4. Terence M Lawson (1 out of 10 patents)

5. Gregory A Quilliam (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5055365 - Electrostatic proofing of negative color separations (1991-10-08),

2. 5021313 - Image reversal process (1991-06-04),

3. 4820618 - Method of forming a color proof by color electrostatography (1989-04-11),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#17 in Boxmeer

#1,673 in Netherlands

Boxmeer, Netherlands

Stork Colorproofing B.v.

Forward Citations = 6

5 inventors:

Josef Matkan (1 out of 14 patents)

John T Alston (1 out of 1 patent)

Julie M Alston (1 out of 1 patent)

4. Terence M Lawson (1 out of 10 patents)

5. Gregory A Quilliam (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stork Colorproofing B.v.. Retrieved from https://idiyas.com/company/stork-colorproofing-b-v

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]