Growing community of inventors

Waltham, MA, United States of America

Derek Hisami Mitsumori

Average Co-Inventor Count = 2.88

ph-index = 5

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 208

Derek Hisami MitsumoriRobert Olshansky (5 patents)Derek Hisami MitsumoriEric Richard Sporel (5 patents)Derek Hisami MitsumoriMichael Baj (5 patents)Derek Hisami MitsumoriElliot G Eichen (3 patents)Derek Hisami MitsumoriSujin Catherine Chang (3 patents)Derek Hisami MitsumoriRobert H Liao (2 patents)Derek Hisami MitsumoriJames Flynn (2 patents)Derek Hisami MitsumoriKwang-Shan Pan (2 patents)Derek Hisami MitsumoriHarry Edward Mussman (1 patent)Derek Hisami MitsumoriJim Flynn (1 patent)Derek Hisami MitsumoriDerek Hisami Mitsumori (12 patents)Robert OlshanskyRobert Olshansky (39 patents)Eric Richard SporelEric Richard Sporel (18 patents)Michael BajMichael Baj (9 patents)Elliot G EichenElliot G Eichen (65 patents)Sujin Catherine ChangSujin Catherine Chang (10 patents)Robert H LiaoRobert H Liao (17 patents)James FlynnJames Flynn (9 patents)Kwang-Shan PanKwang-Shan Pan (2 patents)Harry Edward MussmanHarry Edward Mussman (16 patents)Jim FlynnJim Flynn (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Level 3 Communications, LLC (7 from 1,105 patents)

2. Verizon Data Services Inc. (4 from 82 patents)

3. Verizon Patent and Licensing Inc. (1 from 6,574 patents)


12 patents:

1. 10659618 - System and method for monitoring communications in a network

2. 10033877 - System and method for monitoring communications in a network

3. 9591468 - System and method for monitoring communications in a network

4. 9137315 - E911 location server

5. 8885494 - System and method for monitoring communications in a network

6. 8737385 - PBX call management

7. 8582724 - E911 location server

8. 7920692 - PBX call management

9. 7764670 - System and method for monitoring communications in a network

10. 7711094 - E911 location server

11. 7379471 - System and method for generating reports in a network

12. 6850525 - Voice over internet protocol (VoIP) network performance monitor

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as of
1/7/2026
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