For the Inventor, By the Inventor

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Anaheim, CA, United States of America

Calcomp Inc.

USPTO Granted Patents = 100

Forward Citations = 1,554

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71 inventors (with patents filed for the assignee):

Waldo L Landmeier (14 out of 16 patents)

James S Watson (12 out of 13 patents)

Jeff T Stapleton (6 out of 6 patents)

4. Patrick Nguyen (6 out of 6 patents)

5. James Lawrence (5 out of 12 patents)

6. Lynn H Rockwell (5 out of 8 patents)

7. Dana Doubrava (4 out of 4 patents)

8. August D Coby (4 out of 4 patents)

9. John M Bertalan (4 out of 4 patents)

10. Richard Mansueto (3 out of 3 patents)

11. Paul S Tzeng (3 out of 3 patents)

12. Jason J Hoendervoogt (3 out of 3 patents)

13. Douglas K MacNiel (3 out of 4 patents)

14. Richard Freudenberger (3 out of 3 patents)

15. Brian L Abernethy (3 out of 3 patents)

Core Competencies:

Digitizer

Ink Delivery

Pen Plotters

Cursor Calibration

Media Sensing

Electromagnetic Signals

Optical Sensors

High Efficiency

Pressure Sensing

Phase Reference

Velocity Offset

Color Mixing

100 patents: Sort by Forward Citations

1. 5856639 - Pointer position detection system using a signal processor in the pointer (1999-01-05),

2. 5854449 - High accuracy digitizer system (1998-12-29),

3. 5821916 - Digitizer cursor velocity offset error correction system (1998-10-13),

4. 5801726 - Service station support bracket for printers (1998-09-01),

5. 5721577 - Large capacity ink cartridge (1998-02-24),

6. 5719608 - Constant flow ink delivery system (1998-02-17),

7. 5714720 - High efficiency passive pointer digitizer system (1998-02-03),

8. 5710585 - Ink source for an ink delivery system (1998-01-20),

9. 5710579 - Sensor system for printers (1998-01-20),

10. 5701141 - Digitizer tablet system with dual-mode cursor/mouse (1997-12-23),

11. 5687298 - Chordal tolerance control in circles on pen plotters for increased (1997-11-11),

12. 5682039 - Media position sensing system having a plurality of apertures in the (1997-10-28),

13. 5596351 - Ink level sensing on a pen carriage in a pen plotter (1997-01-21),

14. 5525981 - Cordless digitizer transducer/cursor status transmission apparatus and (1996-06-11),

15. 5489934 - Printed wire recording transducer for electrostatic printing/plotting (1996-02-06),

Calcomp Inc., based in Anaheim, California, specializes in advanced digitizer technology, focusing on the development and manufacturing of high-performance digitizers and pen plotters. The company is recognized for its innovations in ink delivery systems, cursor calibration, and media sensing technologies. By leveraging electromagnetic signals and optical sensors, Calcomp enhances the efficiency and accuracy of digital drawing and design processes, catering to various industries that require precise graphical input solutions.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

100 Patents

#2 in Anaheim, CA

#868 in California

#3,795 in US

#7,773 in the World

Anaheim, CA, United States of America

Calcomp Inc.

Forward Citations = 1,554

71 inventors:

Waldo L Landmeier (14 out of 16 patents)

James S Watson (12 out of 13 patents)

Jeff T Stapleton (6 out of 6 patents)

4. Patrick Nguyen (6 out of 6 patents)

5. James Lawrence (5 out of 12 patents)

Please report any incorrect information to [email protected]

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