For the Inventor, By the Inventor

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Irvine, CA, United States of America

Printronix, Inc.

USPTO Granted Patents = 97

EPO Patents = 7

Trademarks = 12

Forward Citations = 1,054

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82 inventors (with patents filed for the assignee):

Gordon B Barrus (36 out of 36 patents)

Lihu Chiu (15 out of 19 patents)

Norman E Farb (13 out of 14 patents)

4. Dennis R White (8 out of 21 patents)

5. Leo J Emenaker (8 out of 8 patents)

6. Jerry Matula (8 out of 10 patents)

7. Kevin P Moore (7 out of 7 patents)

8. Andrew W Edwards (7 out of 7 patents)

9. Richard E Schumaker (6 out of 9 patents)

10. Y Grant Chang (6 out of 6 patents)

11. John Stanley Kinley (6 out of 6 patents)

12. Rudy Concepcion, Jr (5 out of 7 patents)

13. John W Gemmell (5 out of 5 patents)

14. Theodore A Chapman (5 out of 5 patents)

15. Jeng-dung Jou (4 out of 5 patents)

Core Competencies:

Adaptive Ribbon Speed Control

Line Printer Hammer Banks

Intelligent Ribbon Cartridge

Thermal Printer Apparatus

RFID Verifier System

Capacitively-Coupled RFID Encoder

Multi-Band RFID Encoder

Constant Density Printer System

Barcode Verification

Printer Application Adapter

High Strength Metal Alloys

Print Ribbon Detection System

97 patents: Sort by Forward Citations

1. 12208635 - Adaptive ribbon speed control systems and methods (2025-01-28),

2. 8789922 - Line printer hammer banks (2014-07-29),

3. 8767027 - Preventing coil overheating in line printer hammer banks (2014-07-01),

4. 8714849 - Intelligent ribbon cartridge (2014-05-06),

5. 8657409 - Line printer hammer banks (2014-02-25),

6. 8317420 - Ribbon cassette (2012-11-27),

7. 7891892 - Printer read after print correlation method (2011-02-22),

8. 7646498 - Thermal printer read after print correlation apparatus (2010-01-12),

9. 7540247 - Printer ribbon with sewn feature and apparatus for forming same (2009-06-02),

10. 7513431 - Method and system for aiming an RFID reader (2009-04-07),

11. 7479883 - RFID verifier (2009-01-20),

12. 7457849 - Controlled firewall penetration for management of discrete devices (2008-11-25),

13. 7400989 - RFID verifier system with grade classification (2008-07-15),

14. 7390135 - Ribbon identification (2008-06-24),

15. 7390134 - Ribbon identification (2008-06-24),

Printronix, Inc. is a global leader in industrial printing solutions. With over 40 years of experience, Printronix specializes in designing and manufacturing reliable and high-performance line matrix, thermal barcode, and RFID printers. Their products are trusted by industries worldwide for their durability, efficiency, and exceptional print quality. Printronix is committed to delivering innovative printing solutions that help businesses streamline their operations and improve productivity. Visit their website to learn more about their advanced printing technologies and industry-specific solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

97 Patents

#31 in Irvine, CA

#888 in California

#3,751 in US

#7,745 in the World

Irvine, CA, United States of America

Printronix, Inc.

Forward Citations = 1,054

82 inventors:

Gordon B Barrus (36 out of 36 patents)

Lihu Chiu (15 out of 19 patents)

Norman E Farb (13 out of 14 patents)

4. Dennis R White (8 out of 21 patents)

5. Leo J Emenaker (8 out of 8 patents)

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