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For the Inventor, By the Inventor

Sussex, WI, United States of America

Quadtech, Inc.


USPTO Granted Patents = 102

% Expired Patents = 24.5


Trademarks = 4

Forward Citations = 1,622

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81 inventors (with patents filed for the assignee):

goldMedal John C Seymour (24 out of 31 patents)

silverMedal William T Graushar (12 out of 43 patents)

bronzeMedal Ingermar S d'Agrella (12 out of 13 patents)

4.  Michael D Sisco (12 out of 17 patents)

5.  Karl P Schaefer (11 out of 13 patents)

6.  Stephen J Daily (9 out of 12 patents)

7.  Bradly S Moersfelder (9 out of 9 patents)

8.  Rick C Honeck (8 out of 11 patents)

9.  Adam Nelson (8 out of 11 patents)

10.  Jon Ubert (8 out of 11 patents)

11.  Jeffrey W Sainio (8 out of 11 patents)

12.  Mark R Hansen (6 out of 6 patents)

13.  John M Neary (6 out of 7 patents)

14.  Patrick Noffke (5 out of 9 patents)

15.  Eric Pearson (5 out of 5 patents)


Core Competencies:
Color Monitoring
Ink Usage
Imaging Systems
Print Control
Color Registration
Inspection Systems
Adaptive Control
Dampening Control
Signature Delivery
Closed-Loop Control
Web Inspection
Printed Product

102 patents:

1. 10506107 - In line color monitoring system (2019-12-10),
2. 9862181 - System and method for monitoring ink use in a printing system (2018-01-09),
3. 9734570 - Color correct imaging (2017-08-15),
4. 9712719 - Remote adjustment of print settings (2017-07-18),
5. 9565339 - Determination of tone value increase from a printed image (2017-02-07),
6. 9498970 - System and method for monitoring ink use in a printing system (2016-11-22),
7. 9454812 - Remote approval of print (2016-09-27),
8. 9325860 - Line color monitoring system (2016-04-26),
9. 9047520 - Remote approval of print (2015-06-02),
10. 8817345 - Image processing using multiple imaging devices (2014-08-26),
11. 8586956 - Imaging an imprinted substrate on a printing press using an image sensor (2013-11-19),
12. 8441700 - Image processing of a portion of multiple patches of a colorbar (2013-05-14),
13. 8437041 - Print imaging system (2013-05-07),
14. 8194283 - Print imaging system (2012-06-05),
15. 8183550 - Imaging an imprinted substrate on a printing press (2012-05-22),
Company Overview
Quadtech, Inc., based in Sussex, Wisconsin, specializes in advanced printing technology solutions. The company focuses on developing innovative systems for color monitoring, ink usage optimization, and print control, ensuring high-quality output in the printing industry. Their expertise extends to imaging systems, color registration, and inspection systems, which enhance the efficiency and accuracy of printing processes. Quadtech's adaptive and dampening control technologies further contribute to improved operational performance, making them a key player in the field of printing technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Quadtech, Inc. USPTO Patent Assignee Logo
102 Patents

#1 in Sussex, WI

#83 in Wisconsin

#3,716 in US

#7,641 in the World

Sussex, WI (US)
Sussex, WI, United States of America

Quadtech, Inc.

Forward Citations = 1,622

81 inventors:

goldMedal John C Seymour (24 out of 31 patents)

silverMedal William T Graushar (12 out of 43 patents)

bronzeMedal Ingermar S d'Agrella (12 out of 13 patents)

4.  Michael D Sisco (12 out of 17 patents)

5.  Karl P Schaefer (11 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Quadtech, Inc.. Retrieved from https://idiyas.com/company/quadtech

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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