Inventor · disambiguated record
Rolf Stiefel
Also filed as: STIEFEL ROLF
3 granted patents·85 citations·filing 1997–1999
73Inventor score
Files withCIT ALCATEL3
Top patents by PatentIndex Score
3 records- 0156US6126069AChip card, method and system for using and paying for servicesCIT ALCATEL·Filed 1997·Granted Oct 3, 2000·66 cites·15 claims
- 0240US6430279B2Method for the acceptance of calling charges for individual calls as well as telephone network and terminal unitCIT ALCATEL·Filed 1999·Granted Aug 6, 2002·12 cites·14 claims
- 0335US6208722B1Method of accepting charges in individual connections and a telephone network and terminalCIT ALCATEL·Filed 1998·Granted Mar 27, 2001·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →