Assignee
KECHT JOHANN
DE5 patents
Top patents by PatentIndex Score
US9409434B2Aug 9, 2016
Security feature
KECHT JOHANN4 citations70
US8871299B2Oct 28, 2014
Solid particles having a silicate coating
KECHT JOHANN4 citations70
US10981406B2Apr 20, 2021
Security feature
KECHT JOHANN0 citations49
US9908360B2Mar 6, 2018
Security feature and method for producing a security feature
KECHT JOHANN1 citations49
US9453162B2Sep 27, 2016
Alkali metal and alkaline earth metal niobates and tantalates as security feature substances
KECHT JOHANN1 citations49