Growing community of inventors

Thornhill, Canada

David Mandelstam

Average Co-Inventor Count = 1.33

ph-index = 1

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 = 0

David MandelstamMichael Feldman (1 patent)David MandelstamDavid Mandelstam (2 patents)Michael FeldmanMichael Feldman (11 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,961 patents)

2. Sangoma Technologies Corporation (1 from 1 patent)


2 patents:

1. 8351583 - Telecommunication system and method of synchronization

2. 7512227 - Echo canceller controller

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1/14/2026
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