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For the Inventor, By the Inventor

Bothell, WA, United States of America

Teltone Corporation


USPTO Granted Patents = 16

Trademarks = 1

Forward Citations = 501

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18 inventors (with patents filed for the assignee):

goldMedal Raymond Ma (5 out of 5 patents)

silverMedal Daniel R Asmussen (3 out of 5 patents)

bronzeMedal John E Trombly (2 out of 5 patents)

4.  Barry C Breen (2 out of 3 patents)

5.  John D Foulkes (2 out of 2 patents)

6.  David K Worthington (2 out of 2 patents)

7.  Alexander D Vdolek (1 out of 2 patents)

8.  David M Rollins (1 out of 4 patents)

9.  John D Hoskinson (1 out of 5 patents)

10.  Stephen W Horton (1 out of 3 patents)

11.  Arnold J Koster (1 out of 1 patent)

12.  Richard W Soshea (1 out of 1 patent)

13.  Ray Ma (1 out of 1 patent)

14.  Scott P Masonholder (1 out of 1 patent)

15.  Ardell T Dyste (1 out of 1 patent)


16 patents:

1. 5563938 - Subscriber telephone diverter switch (1996-10-08),
2. 5241587 - Polling controller (1993-08-31),
3. 5239570 - 9-1-1 Switched access system (1993-08-24),
4. 4412299 - Phase jitter detector (1983-10-25),
5. 4330687 - Audio and full duplex digital data carrier system (1982-05-18),
6. 4302629 - Digital data transmission system (1981-11-24),
7. 4214130 - Signal coupler (1980-07-22),
8. 4165912 - Offset adapter connector (1979-08-28),
9. 4146751 - Solid state pulsing apparatus for pulsing selected line relay terminals (1979-03-27),
10. 4145576 - DTMF and rotary dial signal receiver (1979-03-20),
11. 4121880 - Elongate electrical connector retaining device (1978-10-24),
12. 4009352 - Multiple link circuit for a port multiplexer (1977-02-22),
13. 3988687 - Step-servoed tone detector (1976-10-26),
14. 3961141 - Stop time-out until after first DTMF digit dialed circuit (1976-06-01),
15. 3959598 - Identification forwarding circuit for use with tone-to-pulse converters (1976-05-25),
Company Overview
Teltone Corporation, based in Bothell, WA, specializes in advanced telecommunications solutions. The company focuses on developing innovative products that enhance communication systems, including voice processing and call management technologies. Teltone's expertise extends to the integration of cloud-based services, providing robust solutions for businesses seeking to optimize their telephony infrastructure. With a commitment to quality and innovation, Teltone plays a significant role in shaping the future of communication technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#33 in Bothell, WA

#434 in Washington

#19,922 in US

#37,828 in the World

Bothell, WA (US)
Bothell, WA, United States of America

Teltone Corporation

Forward Citations = 501

18 inventors:

goldMedal Raymond Ma (5 out of 5 patents)

silverMedal Daniel R Asmussen (3 out of 5 patents)

bronzeMedal John E Trombly (2 out of 5 patents)

4.  Barry C Breen (2 out of 3 patents)

5.  John D Foulkes (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Teltone Corporation. Retrieved from https://idiyas.com/company/teltone

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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