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For the Inventor, By the Inventor

San Francisco, CA, United States of America

Pacific Bell


USPTO Granted Patents = 43


Forward Citations = 1,365

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38 inventors (with patents filed for the assignee):

goldMedal Daniel P Lubarsky (7 out of 8 patents)

silverMedal James E Kohl (5 out of 11 patents)

bronzeMedal John J Schembri (5 out of 5 patents)

4.  Gregg D Carse (5 out of 5 patents)

5.  Mark E Haisch (4 out of 4 patents)

6.  William P Kornrumpf (3 out of 76 patents)

7.  George A Weigt (3 out of 3 patents)

8.  Ning Zhang (3 out of 3 patents)

9.  Bernard N Daines (3 out of 3 patents)

10.  John D Harnden, Jr (2 out of 29 patents)

11.  Michael S Adler (2 out of 18 patents)

12.  Dominic A Cusano (2 out of 34 patents)

13.  Donald L Watrous (2 out of 21 patents)

14.  Edward C Posner (2 out of 3 patents)

15.  Robert S Scott (2 out of 7 patents)


Core Competencies:
Telephone Network Testing
Hybrid Database Structure
Digital Network
Fiber Optic Distribution
Error Correcting Code
Piezoelectric Relay
Packet Routing Switch
Cross-Connect Switch
Pay-Per-View CATV
Digital Service Unit
TDM Data Switching
Optical Fiber Bandwidth Limiting

43 patents:

1. 5848144 - Switch cutover with paced transition (1998-12-08),
2. 5452206 - Method for generating documentation for computer software (1995-09-19),
3. 5386525 - System for providing application programs with direct addressability (1995-01-31),
4. 5357556 - System and method for telephone network testing (1994-10-18),
5. 5327485 - Telephone lottery play system (1994-07-05),
6. 5295261 - Hybrid database structure linking navigational fields having a (1994-03-15),
7. 5216853 - Telephone enclosure (1993-06-08),
8. 5216668 - Modulated nonblocking parallel banyan network (1993-06-01),
9. 5132965 - Nonblocking parallel Banyan network (1992-07-21),
10. 5124943 - Digital network utilizing telephone lines (1992-06-23),
11. 5093600 - Piezo-electric relay (1992-03-03),
12. 5065394 - Packet routing switch (1991-11-12),
13. 5062104 - Digital service unit for connecting data processing equipment to a (1991-10-29),
14. 5058163 - Interface unit for transferring digital data between time-domain (1991-10-15),
15. 5023612 - Illegal sequence detection and protection circuit (1991-06-11),
Pacific Bell, also known as PacBell, is a telecommunications company based in California, USA. It is a subsidiary of AT&T Inc. and provides telecommunication services to residential and business customers. The company offers a range of services including voice, data, internet, and wireless communications. With a strong presence in California, Pacific Bell focuses on delivering reliable and advanced communication solutions to its customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

43 Patents

#103 in San Francisco, CA

#1,845 in California

#7,821 in US

#15,577 in the World

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San Francisco, CA, United States of America

Pacific Bell

Forward Citations = 1,365

38 inventors:

goldMedal Daniel P Lubarsky (7 out of 8 patents)

silverMedal James E Kohl (5 out of 11 patents)

bronzeMedal John J Schembri (5 out of 5 patents)

4.  Gregg D Carse (5 out of 5 patents)

5.  Mark E Haisch (4 out of 4 patents)

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