For the Inventor, By the Inventor

Enter assignee name

Bloomington, MN, United States of America

Vtc Inc.

USPTO Granted Patents = 74

Trademarks = 3

Forward Citations = 936

Loading Chart...

Loading Chart...

43 inventors (with patents filed for the assignee):

Tuan V Ngo (24 out of 44 patents)

Craig Matthew Brannon (13 out of 22 patents)

John J Price, Jr (9 out of 20 patents)

4. John S Shier (9 out of 12 patents)

5. Raymond E Barnett (7 out of 9 patents)

6. Douglas R Peterson (6 out of 7 patents)

7. Richard E Hester (6 out of 9 patents)

8. William W Leake (6 out of 6 patents)

9. John D Leighton (4 out of 21 patents)

10. Russell V Solstad (4 out of 4 patents)

11. David E Sutliff (3 out of 3 patents)

12. Jeffrey A Gleason (3 out of 3 patents)

13. Douglas Warren Dean (2 out of 17 patents)

14. Jerry Wahl (2 out of 11 patents)

15. Robert John Schuelke (2 out of 15 patents)

Core Competencies:

Magnetoresistive Sensors

Preamplifier

Write Driver

Bias Circuit

Data Storage

Noise Filtering

Differential Amplifier

Current Mirror

Voltage Sense

Analog-to-Digital Converter

Integrated Circuit

Signal Processing

74 patents: Sort by Forward Citations

1. 6111716 - Referenced magnetoresistives sensor band pass preamplifier (2000-08-29),

2. 6107888 - Method to equalize input currents to differential-to-single-ended (2000-08-22),

3. 6020695 - Three-phase generator boost circuit (2000-02-01),

4. 6005733 - Preamplifier bias circuit for use in an AC coupled magnetoresistive read (1999-12-21),

5. 5994951 - Automatic-tuning circuit for integrated continuous-time MOSFET-C filters (1999-11-30),

6. 5990710 - High performance write driver for magnetic inductive recording head (1999-11-23),

7. 5986832 - Write driver with Schottky diodes to improve switching rate and (1999-11-16),

8. 5982574 - Automatic tracking frequency servo demodulation technique for DVCR (1999-11-09),

9. 5942934 - On-chip regulator providing good high frequency rejection and noise (1999-08-24),

10. 5920729 - Apparatus for providing pair of complementary outputs with first and (1999-07-06),

11. 5914630 - MR head preamplifier with output signal amplitude which is independent (1999-06-22),

12. 5900779 - Differential transimpedance amplifier (1999-05-04),

13. 5894237 - Write driver with buffer circuits between pull-up resistors and upper (1999-04-13),

14. 5886568 - Open-loop MR biasing circuit with high power supply and common mode (1999-03-23),

15. 5880626 - Active damping for a disk drive write circuit (1999-03-09),

Vtc Inc., based in Bloomington, MN, specializes in the development and manufacturing of advanced magnetoresistive sensors. These sensors are integral to various applications, including data storage and noise filtering, enhancing performance in electronic systems. The company focuses on core technologies such as preamplifiers, write drivers, bias circuits, differential amplifiers, and current mirrors, positioning itself as a key player in the sensor technology landscape. Vtc Inc. is committed to innovation in the field of magnetoresistive technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

74 Patents

#6 in Bloomington, MN

#140 in Minnesota

#4,972 in US

#10,119 in the World

Bloomington, MN, United States of America

Vtc Inc.

Forward Citations = 936

43 inventors:

Tuan V Ngo (24 out of 44 patents)

Craig Matthew Brannon (13 out of 22 patents)

John J Price, Jr (9 out of 20 patents)

4. John S Shier (9 out of 12 patents)

5. Raymond E Barnett (7 out of 9 patents)

Please report any incorrect information to [email protected]

Loading…