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For the Inventor, By the Inventor

Austin, TX, United States of America

Hart Communication Foundation


USPTO Granted Patents = 15


Trademarks = 4

Forward Citations = 236

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13 inventors (with patents filed for the assignee):

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

silverMedal Tomas Lennvall (14 out of 21 patents)

bronzeMedal Robin S Pramanik (14 out of 15 patents)

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

5.  Mark J Nixon (14 out of 306 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 26 patents)

14.  Tomas P Lennvall (0 patent)

15.  Yuri Zats (0 patent)


15 patents:

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),
Company Overview
Hart Communication Foundation is dedicated to advancing communication technologies and fostering innovation in various sectors. Based in Austin, TX, the organization specializes in developing solutions that enhance connectivity and information dissemination. Its research spans multiple domains, including telecommunications, digital media, and educational technologies, aiming to improve accessibility and engagement across diverse communities. The foundation collaborates with various stakeholders to promote effective communication strategies and support technological advancements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

15 Patents

#219 in Austin, TX

#1,296 in Texas

#21,034 in US

#39,881 in the World

Austin, TX (US)
Austin, TX, United States of America

Hart Communication Foundation

Forward Citations = 236

13 inventors:

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

silverMedal Tomas Lennvall (14 out of 21 patents)

bronzeMedal Robin S Pramanik (14 out of 15 patents)

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

5.  Mark J Nixon (14 out of 306 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hart Communication Foundation. Retrieved from https://idiyas.com/company/hart-communication-foundation

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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