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Round Rock, TX, United States of America

Carroll Touch Inc.

USPTO Granted Patents = 14

Forward Citations = 852

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16 inventors (with patents filed for the assignee):

James E Garrett (3 out of 5 patents)

Terence J Knowles (3 out of 32 patents)

Paul B Lucas (3 out of 3 patents)

4. John K Carstedt (3 out of 3 patents)

5. Wayne J Wehrer (2 out of 9 patents)

6. Arthur B Carroll (2 out of 3 patents)

7. Timothy E Masters (2 out of 4 patents)

8. Stewart E Hough (2 out of 2 patents)

9. Paul R Hunter (1 out of 6 patents)

10. Alan L Bartlett (1 out of 1 patent)

11. Andrew L Wolfe (1 out of 3 patents)

12. Gary L Barrett (1 out of 3 patents)

13. Terrence J Knowles (1 out of 1 patent)

14. Del Ogren (1 out of 1 patent)

15. Jianming Huang (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 5451723 - Acoustic wave touch panel for use with a non-active stylus (1995-09-19),

2. 5380959 - Controller for an acoustic touch panel (1995-01-10),

3. 5334805 - Controller for an acoustic wave touch panel (1994-08-02),

4. 5329070 - Touch panel for an acoustic touch position sensor (1994-07-12),

5. 5055840 - Infrared touch input device and light emitted activation circuit (1991-10-08),

6. 5041701 - Edge linearization device for a contact input system (1991-08-20),

7. 4988983 - Touch entry system with ambient compensation and programmable (1991-01-29),

8. 4943806 - Touch input device having digital ambient light sampling (1990-07-24),

9. 4818859 - Low profile opto-device assembly with specific optoelectronic lead mount (1989-04-04),

10. 4761637 - Touch input device (1988-08-02),

11. 4713534 - Phototransistor apparatus with current injection ambient compensation (1987-12-15),

12. 4684801 - Signal preconditioning for touch entry device (1987-08-04),

13. 4672364 - Touch input device having power profiling (1987-06-09),

14. 4645920 - Early fault detection in an opto-matrix touch input device (1987-02-24),

Carroll Touch Inc. is a leading provider of touch technology solutions for a wide range of industries, including healthcare, retail, and industrial. With over 35 years of experience, Carroll Touch offers innovative and reliable touch screen products that improve the user experience and increase productivity. Their touch screens are known for their durability, accuracy, and versatility, making them an ideal choice for any touch screen application.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

14 Patents

#17 in Round Rock, TX

#1,344 in Texas

#21,588 in US

#40,857 in the World

Round Rock, TX, United States of America

Carroll Touch Inc.

Forward Citations = 852

16 inventors:

James E Garrett (3 out of 5 patents)

Terence J Knowles (3 out of 32 patents)

Paul B Lucas (3 out of 3 patents)

4. John K Carstedt (3 out of 3 patents)

5. Wayne J Wehrer (2 out of 9 patents)

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