Inventor · disambiguated record
Hans-Joachim Grapentin
Also filed as: GRAPENTIN HANS-JOACHIM
5 granted patents·50 citations·filing 1986–2001
80Inventor score
Top patents by PatentIndex Score
5 records- 0159US5112513ASolution and process for etching and activating surfaces of a nonconductive substrateSCHERING AG·Filed 1989·Granted May 12, 1992·21 cites·3 claims
- 0245US6908515B2Treatment of circuit support with impulse excitationATOTECH DEUTSCHLAND GMBH·Filed 2001·Granted Jun 21, 2005·3 cites·16 claims
- 0340US4781990AConditioning agent for the treatment of base materialsGRAPENTIN HANS JOACHIM·Filed 1986·Granted Nov 1, 1988·10 cites·5 claims
- 0436US5019229AMethod of controlling epoxy resin etchant ion concentrationSCHERING AG·Filed 1989·Granted May 28, 1991·11 cites·10 claims
- 0533US4940554AConditioning agent for the treatment of base materialsSCHERING AG·Filed 1988·Granted Jul 10, 1990·5 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →