For the Inventor, By the Inventor

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Austin, TX, United States of America

Fieldbus Foundation

USPTO Granted Patents = 11

% Expired Patents = 63.6

EPO Patents = 5

Trademarks = 3

Forward Citations = 633

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39 inventors (with patents filed for the assignee):

David A Glanzer (9 out of 9 patents)

Ram Ramachandran (6 out of 27 patents)

Lee Allen Neitzel (4 out of 13 patents)

4. John Carl Gabler (4 out of 6 patents)

5. Joseph D Duffy (4 out of 4 patents)

6. Stephen B Mitschke (4 out of 4 patents)

7. L Jonas F Berge (3 out of 3 patents)

8. Hiroshi Mori (2 out of 110 patents)

9. Jack Elias (2 out of 8 patents)

10. Yasuo Kumeda (2 out of 4 patents)

11. Kenneth D Krivoshein (2 out of 9 patents)

12. William R Hodson (2 out of 2 patents)

13. Patricia E Brett (2 out of 2 patents)

14. Frank Lynch (2 out of 2 patents)

15. Thomas B Kinney (2 out of 13 patents)

11 patents: Sort by Forward Citations

1. 8676357 - System and method for implementing an extended safety instrumented system (2014-03-18),

2. 8539110 - Block-orientated control system having wireless gateway for communication with wireless field devices (2013-09-17),

3. 7489977 - System and method for implementing time synchronization monitoring and detection in a safety instrumented system (2009-02-10),

4. 7486999 - System and method for implementing safety instrumented systems in a fieldbus architecture (2009-02-03),

5. 7272457 - Flexible function blocks (2007-09-18),

6. 7167762 - System and method for implementing safety instrumented systems in a fieldbus architecture (2007-01-23),

7. 7146230 - Integrated fieldbus data server architecture (2006-12-05),

8. 6999824 - System and method for implementing safety instrumented systems in a fieldbus architecture (2006-02-14),

9. 6826590 - Block-oriented control system on high speed ethernet (2004-11-30),

10. 6594530 - Block-oriented control system (2003-07-15),

11. 6424872 - Block oriented control system (2002-07-23),

Founded in 1999, Fieldbus Foundation is a global non-profit organization that provides a forum for the development, standardization, and promotion of fieldbus technology. It supports the implementation of digital communication networks in industrial automation systems to improve efficiency, reliability, and safety.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

11 Patents

#271 in Austin, TX

#1,720 in Texas

#27,470 in US

#51,671 in the World

Austin, TX, United States of America

Fieldbus Foundation

Forward Citations = 633

39 inventors:

David A Glanzer (9 out of 9 patents)

Ram Ramachandran (6 out of 27 patents)

Lee Allen Neitzel (4 out of 13 patents)

4. John Carl Gabler (4 out of 6 patents)

5. Joseph D Duffy (4 out of 4 patents)

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