Growing community of inventors

Le Mans, France

Sandrine Vitel

Average Co-Inventor Count = 1.14

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

Sandrine VitelJean-Paul Coupigny (1 patent)Sandrine VitelSandrine Vitel (4 patents)Jean-Paul CoupignyJean-Paul Coupigny (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. U.S. Philips Corporation (2 from 14,087 patents)

2. Koninklijke Philips Corporation N.V. (1 from 21,402 patents)

3. U.S. Phillips Corporation (1 from 77 patents)


4 patents:

1. 6625441 - Telephony system with a key for accessing multiple answering machines or mailboxes

2. 6370388 - Telephony device transmitting divided messages

3. 6240300 - Telephony device comprising a base station and at least a subscriber unit and method for connecting to such a telephony device

4. 6148214 - Telephone using service messages for identification signals

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as of
12/31/2025
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