For the Inventor, By the Inventor

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Austin, TX, United States of America

Hart Communication Foundation

USPTO Granted Patents = 15

EPO Patents = 7

Trademarks = 4

Forward Citations = 229

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13 inventors (with patents filed for the assignee):

Wallace A Pratt, Jr (15 out of 18 patents)

Tomas Lennvall (14 out of 21 patents)

Robin S Pramanik (14 out of 15 patents)

4. Eric Darrell Rotvold (14 out of 43 patents)

5. Mark J Nixon (14 out of 288 patents)

6. Yuri Zats (6 out of 9 patents)

7. Terrence L Blevins (6 out of 99 patents)

8. Thomas L Phinney (2 out of 14 patents)

9. Frederick R Enns (2 out of 27 patents)

10. Daraius K Hathiram (1 out of 5 patents)

11. Chuck Middleton (1 out of 1 patent)

12. Mark M Okamura (1 out of 2 patents)

13. Ronald Edgar Ham (1 out of 25 patents)

14. Tomas P Lennvall (0 patent)

15. Yuri Zats (0 patent)

15 patents: Sort by Forward Citations

1. 8942219 - Support for network management and device communications in a wireless network (2015-01-27),

2. 8892769 - Routing packets on a network using directed graphs (2014-11-18),

3. 8798084 - Increasing reliability and reducing latency in a wireless network (2014-08-05),

4. 8676219 - Combined wired and wireless communications with field devices in a process control environment (2014-03-18),

5. 8670749 - Enhancing security in a wireless network (2014-03-11),

6. 8670746 - Enhancing security in a wireless network (2014-03-11),

7. 8660108 - Synchronizing timeslots in a wireless communication protocol (2014-02-25),

8. 8570922 - Efficient addressing in wireless hart protocol (2013-10-29),

9. 8451809 - Wireless gateway in a process control environment supporting a wireless communication protocol (2013-05-28),

10. 8441947 - Simultaneous data packet processing (2013-05-14),

11. 8406248 - Priority-based scheduling and routing in a wireless network (2013-03-26),

12. 8356431 - Scheduling communication frames in a wireless network (2013-01-22),

13. 8325627 - Adaptive scheduling in a wireless network (2012-12-04),

14. 8230108 - Routing packets on a network using directed graphs (2012-07-24),

15. 8169974 - Suspending transmissions in a wireless network (2012-05-01),

The HART Communication Foundation is a global, membership-based non-profit organization that provides technology and standards for implementing the Highway Addressable Remote Transducer Protocol (HART). HART is a widely used communication protocol for the process industry, enabling intelligent field devices to communicate with control systems. The foundation offers training, certification, and testing services to ensure interoperability and successful HART implementations. They also facilitate the development and maintenance of the HART Communication Protocol specifications, which are continually updated to meet industry needs.

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

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USPTO Data Jan 1 1976 - Jan 6 2026

15 Patents

#210 in Austin, TX

#1,272 in Texas

#20,443 in US

#38,742 in the World

Austin, TX, United States of America

Hart Communication Foundation

Forward Citations = 229

13 inventors:

Wallace A Pratt, Jr (15 out of 18 patents)

Tomas Lennvall (14 out of 21 patents)

Robin S Pramanik (14 out of 15 patents)

4. Eric Darrell Rotvold (14 out of 43 patents)

5. Mark J Nixon (14 out of 288 patents)

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