San Francisco, CA, United States of America

Peter T Barrett

This inventor holds 84 USPTO granted patents and 5 published patent applications, plus 4 CIPO patents and 7 EPO patents, primarily in Media Technology (CPC class H04W4-046). Top assignees: Microsoft Technology Licensing, LLC, Cloudcar, Inc., Radius Corporation. Active years: 1994-2017.

USPTO Granted Patents = 84 (Patent Applications = 5)

% Patents Active = 53.6

CIPO Patents = 4 (Patent Applications = 1)

EPO Patents = 7 (Patent Applications = 6)

Average Co-Inventor Count = 2.0

ph-index = 20

Forward Citations = 1,509(Granted Patents)

Forward Citations (Not Self Cited) = 1,474(Dec 10, 2025)

Inventors with similar research interests:

Location History:

San Francisco, CA (US) (2002 - 2016)
Palo Alto, CA (US) (1994 - 2017)

Company Filing History:

66 out of 56,194

Microsoft Technology Licensing, LLC

Supermac Technology, Inc.

Years Active: 1994-2017

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Areas of Expertise:

Teleconference Calls

Electronic Program Guide

Cloud-Based Systems

Media Recommendations

Digital Content Protection

Vehicle Control

User Interface Configuration

Multi-DVR Arbitration

Geographical Location Aggregation

Contextual Advertisements

Streaming Environment

Digital Channel Changing

84 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9571659 - Teleconference calls based on calendar events (2017-02-14),

2. 9445157 - Specialized media presentation via an electronic program guide (EPG) (2016-09-13),

3. 9410813 - Course-based place searching (2016-08-09),

4. 9386136 - Automatic device initialization and pairing (2016-07-05),

5. 9378286 - Implicit user interest marks in media content (2016-06-28),

6. 9241125 - Unified recording and pause buffer format (2016-01-19),

7. 9233655 - Cloud-based vehicle information and control system (2016-01-12),

8. 9232069 - Teleconference calls based on calendar events (2016-01-05),

9. 9230438 - Vehicle location and activity sharing (2016-01-05),

10. 9207093 - Navigation based on calendar events (2015-12-08),

11. 9137622 - Enforcement of regulatory guidelines associated with a drive mode of a vehicle (2015-09-15),

12. 9124767 - Multi-DVR media content arbitration (2015-09-01),

13. D734270 - Upgradeable multimedia module connector (2015-07-14),

14. 9031710 - Cloud-based vehicle information and control system (2015-05-12),

15. 9002567 - Course-based place searching (2015-04-07),

Title: Top Inventor in San Francisco

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