% Expired Patents = 50.0

Trademarks = 13

Forward Citations = 827

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17 inventors (with patents filed for the assignee):

Harold M Kester (7 out of 24 patents)

Michael Reed (7 out of 7 patents)

Carol Greenhalgh (7 out of 7 patents)

4. Ron Carlton (7 out of 7 patents)

5. Norman J Bastin (7 out of 7 patents)

6. Stanley D Frank (7 out of 8 patents)

7. Dale Good (7 out of 7 patents)

8. Neil Holman (7 out of 7 patents)

9. Carl Holzman (7 out of 7 patents)

10. Ann Jensen (7 out of 7 patents)

11. Edwardo Munevar (7 out of 7 patents)

12. Derryl Rogers (7 out of 7 patents)

13. Greg Bestick (7 out of 7 patents)

14. Gail B Maatman (4 out of 4 patents)

15. Dave Maatman (3 out of 3 patents)

8 patents: Sort by Forward Citations

1. 12353456 - Systems, methods, and apparatus for context-driven search (2025-07-08),

2. 7664775 - Multimedia search system (2010-02-16),

3. 7085778 - Multimedia search system (2006-08-01),

4. 7082437 - Multimedia search system (2006-07-25),

5. 7051018 - Multimedia search system (2006-05-23),

6. 6978277 - Multimedia search system (2005-12-20),

7. 6546399 - Multimedia search system (2003-04-08),

8. 5241671 - Multimedia search system using a plurality of entry path means which (1993-08-31),

Company Overview

Encyclopaedia Britannica, Inc. is a global educational publisher known for its authoritative and trustworthy sources of information. With a history dating back over 250 years, the company provides a wide range of digital and print products including encyclopedias, educational curricula, and online learning platforms. Encyclopaedia Britannica remains a leader in the field of knowledge dissemination and is a valuable resource for students, educators, and lifelong learners.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

8 Patents

#412 in Chicago, IL

#1,700 in Illinois

#35,941 in US

Chicago, IL, United States of America

Encyclopaedia Britannica, Inc.

Forward Citations = 827

17 inventors:

Harold M Kester (7 out of 24 patents)

Michael Reed (7 out of 7 patents)

Carol Greenhalgh (7 out of 7 patents)

4. Ron Carlton (7 out of 7 patents)

5. Norman J Bastin (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Encyclopaedia Britannica, Inc.. Retrieved from https://idiyas.com/company/encyclopaedia-britannica

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]