Inventor · disambiguated record
Ewald Pettenpaul
Also filed as: PETTENPAUL EWALD
3 granted patents·89 citations·filing 1981–1989
73Inventor score
Files withSIEMENS AG3
Top patents by PatentIndex Score
3 records- 0184US5047355ASemiconductor diode and method for making itSIEMENS AG·Filed 1989·Granted Sep 10, 1991·52 cites·2 claims
- 0277US4377030AMetallization of selectively implanted AIII -BV compound semiconductorsSIEMENS AG·Filed 1981·Granted Mar 22, 1983·34 cites·7 claims
- 0333US4528518AChain amplifierSIEMENS AG·Filed 1983·Granted Jul 9, 1985·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →