P

Inventor

HARTMANN ERWIN

CH11 patents
⚠️ This page may combine multiple inventors who share the name “HARTMANN ERWIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROEMHILD LUDWIG

3 patents
US4820154AApr 11, 1989

Dental instrument with a tool for treating the teeth

ROEMHILD LUDWIG66 citations93
US4820153AApr 11, 1989

Process and apparatus for cleaning a tooth

ROEMHILD LUDWIG43 citations90
US4979899ADec 25, 1990

Scaler for cleaning teeth

ROEMHILD LUDWIG6 citations60

WALTER WILHELM

2 patents
US8500338B2Aug 6, 2013

Steering knuckle with pre-sealing

WALTER WILHELM6 citations70
US8152381B2Apr 10, 2012

Rolling bearing comprising a device for withdrawing a liquid

WALTER WILHELM2 citations59

SCHAEFFLER KG

1 patent
US7624989B2Dec 1, 2009

Seal with non-contact adjacent deflector rings

SCHAEFFLER KG8 citations83

SCHAEFFLER TECHNOLOGIES AG

1 patent
US9689431B2Jun 27, 2017

Seal arrangement having a thrower ring for an anti-friction bearing

SCHAEFFLER TECHNOLOGIES AG9 citations82

HARTMANN ERWIN

1 patent
US8240674B2Aug 14, 2012

Seal with non-contact adjacent deflector rings

HARTMANN ERWIN9 citations79

RODENSTOCK OPTIK G

1 patent
US4412729ANov 1, 1983

Vision testing device

RODENSTOCK OPTIK G9 citations72

WALTER WILHEIM

1 patent
US8628248B2Jan 14, 2014

Centrifugal ring with collecting channel

WALTER WILHEIM6 citations59

MIKRONA AG

1 patent
US4854080AAug 8, 1989

Apparatus for sharpening periodontal instruments

MIKRONA AG4 citations55