Inventor · disambiguated record
Rainer Sperling
Also filed as: SPERLING RAINER
5 granted patents·1 pending application·15 citations·filing 1994–2006
71Inventor score
Top patents by PatentIndex Score
6 records- 0136US6068926ACarbon brush and process for impregnating sameSCHUNK KOHLENSTOFFTECHNIK GMBH·Filed 1997·Granted May 30, 2000·8 cites·4 claims
- 0231US5798178ACarbon brush and process for impregnating sameSCHUNK KOHLENSTOFFTECHNIK GMBH·Filed 1994·Granted Aug 25, 1998·6 cites·4 claims
- 0329US7094366B2Resin-bonded graphite material, method for the production of a resin bonded graphite material and use thereofSCHUNK KOHLENSTOFFTECHNIK GMBH·Filed 2002·Granted Aug 22, 2006·1 cites·20 claims
- 0426US8323548B2Method for manufacturing a multilayer compression moulded elementLIPPERT HANS·Filed 2006·Granted Dec 4, 2012·0 cites·6 claims
- 0525US7308759B2Method for production of a multi-layer carbon brushSCHUNK KOHLENSTOFFTECHNIK GMBH·Filed 2003·Granted Dec 18, 2007·0 cites·9 claims
- 0622US2001021686A1Carbon-graphite material, method for producing same and its useFiled 1997·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Rainer Sperling files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →