For the Inventor, By the Inventor

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Nevada City, CA, United States of America

The Grass Valley Group, Inc.

USPTO Granted Patents = 143

CIPO Patents = 1

Trademarks = 1

Forward Citations = 2,731

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100 inventors (with patents filed for the assignee):

Richard A Jackson (14 out of 18 patents)

Daniel J Chaplin (12 out of 14 patents)

Jon A Fairhurst (11 out of 11 patents)

4. John Abt (10 out of 13 patents)

5. David E Lake, Jr (9 out of 12 patents)

6. Birney D Dayton (8 out of 15 patents)

7. Richard S Bannister (8 out of 9 patents)

8. David L Hershberger (7 out of 13 patents)

9. Ronnie D Barnett (7 out of 8 patents)

10. Leon J Stanger (5 out of 20 patents)

11. John Edward Liron (5 out of 9 patents)

12. Bruce L Rayner (5 out of 5 patents)

13. Kevin D Windrem (4 out of 17 patents)

14. James A Michener (4 out of 25 patents)

15. Philip A DesJardins (4 out of 10 patents)

Core Competencies:

Routing Switcher

Non-Linear Video Editing

Digital Audio Receiver

Analog-to-Digital Converter

Chroma Keyer

Video Transformation Rendering

Audio Frame Synchronization

Depth Signal Processing

Progressive Scan Architecture

Crosstalk Reduction Circuit

Sampling Rate Conversion

Video Preview System

143 patents: Sort by Forward Citations

1. 7013361 - Routing switcher with variable input/output architecture (2006-03-14),

2. 6965723 - Non-linear video edit system (2005-11-15),

3. 6763177 - Non-linear video edit system (2004-07-13),

4. 6411520 - Modular equipment frame and modules (2002-06-25),

5. 6104997 - Digital audio receiver with multi-channel swapping (2000-08-15),

6. 5528308 - Direct synthesis of a digital audio sample clock (1996-06-18),

7. 5523756 - Analog-to-digital converter with offset reduction loop (1996-06-04),

8. 5519828 - Video editing operator interface for aligning timelines (1996-05-21),

9. 5483538 - Audio frame synchronization for embedded audio demultiplexers (1996-01-09),

10. 5465268 - Digital decoding of biphase-mark encoded serial digital signals (1995-11-07),

11. 5465120 - Spiral buffer for non-linear editing (1995-11-07),

12. 5448302 - Auto-translating recursive effects apparatus and method (1995-09-05),

13. 5448301 - Programmable video transformation rendering method and apparatus (1995-09-05),

14. 5440591 - Switching apparatus for digital signals (1995-08-08),

15. 5430615 - Printed circuit board assembly (1995-07-04),

The Grass Valley Group, Inc. is a leading provider of innovative video production and broadcast technology solutions. With over 60 years of expertise, the company offers a comprehensive range of products and services including camera systems, video routers, production switchers, editing software, and signal processing equipment. Grass Valley's solutions are trusted by major broadcasters, content creators, and media organizations worldwide to deliver high-quality video content efficiently. The company is committed to continuous innovation and helping its customers stay ahead in the rapidly evolving digital media landscape.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

143 Patents

#1 in Nevada City, CA

#610 in California

#2,642 in US

#5,543 in the World

Nevada City, CA, United States of America

The Grass Valley Group, Inc.

Forward Citations = 2,731

100 inventors:

Richard A Jackson (14 out of 18 patents)

Daniel J Chaplin (12 out of 14 patents)

Jon A Fairhurst (11 out of 11 patents)

4. John Abt (10 out of 13 patents)

5. David E Lake, Jr (9 out of 12 patents)

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