For the Inventor, By the Inventor

Enter assignee name

Santa Barbara, CA, United States of America

Callwave, Inc.

Calculating rank

USPTO Granted Patents = 37

% Expired Patents = 83.8

Trademarks = 2

Forward Citations = 2,057

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20 inventors (with patents filed for the assignee):

David S Trandal (32 out of 135 patents)

David J Brahm (17 out of 52 patents)

David Frank Hofstatter (11 out of 40 patents)

4. Leland W Kirchhoff (10 out of 59 patents)

5. Robert F Smith (10 out of 38 patents)

6. Robert A Dolan (7 out of 19 patents)

7. Colin Denison Kelley (7 out of 54 patents)

8. David C McClintock (3 out of 19 patents)

9. David Giannini (2 out of 16 patents)

10. Scott Herriman (2 out of 8 patents)

11. Donnie Tognazzini (2 out of 8 patents)

12. Robert J Duva (2 out of 15 patents)

13. John R Day (2 out of 8 patents)

14. Bob F Smith (2 out of 3 patents)

15. Adrian Van Haaften (1 out of 3 patents)

Core Competencies:

Call Routing

Message Delivery

Telecommunication Authentication

Media Storage

Call Processing

Telephony Services

Short Message Forwarding

Call Screening

Voice Messaging

Dynamic Call Log

Data Transfer

Subscriber Registration

37 patents: Sort by Forward Citations

1. 8270582 - Methods and systems for routing calls (2012-09-18),

2. 8218736 - Methods and systems for confirming message delivery (2012-07-10),

3. 8214338 - Methods and systems for media storage (2012-07-03),

4. 8213581 - Apparatus and methods for telecommunication authentication (2012-07-03),

5. 8165572 - Methods and systems for call processing in a wireline and wireless network (2012-04-24),

6. 8165278 - Enhanced service levels for call-processing services (2012-04-24),

7. 8121626 - Method and systems for short message forwarding services (2012-02-21),

8. 8107609 - Methods and systems for telephony call-back processing (2012-01-31),

9. 8102986 - Methods and systems for providing telecommunications services (2012-01-24),

10. 8085922 - Methods and systems for speed dialing (2011-12-27),

11. 8064588 - Systems and methods for call screening (2011-11-22),

12. 8000455 - Methods and systems for call processing (2011-08-16),

13. 7965825 - Methods and systems for transferring voice messages and faxes over a network (2011-06-21),

14. 7907933 - Call routing apparatus (2011-03-15),

15. 7852749 - Methods and systems for routing telecommunications (2010-12-14),

Company Overview

Callwave, Inc. is a technology company based in Santa Barbara, California, specializing in innovative communication solutions. The organization focuses on developing advanced cloud-based services that enhance voice and messaging capabilities, catering to both individual users and businesses. With a commitment to improving connectivity and user experience, Callwave leverages its expertise in telecommunications and software development to deliver reliable and efficient communication tools that meet the evolving needs of its clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

37 Patents

#13 in Santa Barbara, CA

#2,192 in California

#9,276 in US

#18,312 in the World

Santa Barbara, CA, United States of America

Callwave, Inc.

Forward Citations = 2,057

20 inventors:

David S Trandal (32 out of 135 patents)

David J Brahm (17 out of 52 patents)

David Frank Hofstatter (11 out of 40 patents)

4. Leland W Kirchhoff (10 out of 59 patents)

5. Robert F Smith (10 out of 38 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Callwave, Inc.. Retrieved from https://idiyas.com/company/callwave

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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