Inventor · disambiguated record
Burkhard Krietsch
Also filed as: KRIETSCH BURKHARD
8 granted patents·5 pending applications·152 citations·filing 1997–2011
87Inventor score
Top patents by PatentIndex Score
13 records- 0194US6214917B1Laser-markable plasticsMERCK PATENT GMBH·Filed 1999·Granted Apr 10, 2001·87 cites·18 claims
- 0279US6521688B1Laser-markable plasticsMERCK PATENT GMBH·Filed 1997·Granted Feb 18, 2003·40 cites·14 claims
- 0378US8940189B2Intensely coloured and/or optically variable pigments having an electrically conductive coreKRIETSCH BURKHARD·Filed 2008·Granted Jan 27, 2015·4 cites·21 claims
- 0478US8454861B2Optically variable pigments of high electrical conductivityKRIETSCH BURKHARD·Filed 2008·Granted Jun 4, 2013·3 cites·10 claims
- 0573US7713616B2Dual security markMERCK PATENT GMBH·Filed 2004·Granted May 11, 2010·8 cites·29 claims
- 0667US8039094B2Machine-readable security element for security productsMERCK PATENT GMBH·Filed 2005·Granted Oct 18, 2011·4 cites·26 claims
- 0765US8540812B2Machine-readable security element for security productsKRIETSCH BURKHARD·Filed 2011·Granted Sep 24, 2013·2 cites·10 claims
- 0862US8642161B2Optically variable security elementKUNTZ MATTHIAS·Filed 2007·Granted Feb 4, 2014·4 cites·37 claims
- 0951US2008251222A1Security Paper Comprising WindowsKRIETSCH BURKHARD·Filed 2006·Application pending·0 cites
- 1051US2008295983A1Security PaperKRIETSCH BURKHARD·Filed 2006·Application pending·0 cites
- 1140US2006141391A1Laser marking of documents of valueKLEIN SYLKE·Filed 2005·Application pending·0 cites
- 1237US2007022901A1Metallic ink, and use thereof for improving printsMERCK PATENT GMBH·Filed 2004·Application pending·0 cites
- 1332US2002192585A1Electrophotographic dry toner comprising angle-dependent luster pigmentsMERCK PATENT GMBH·Filed 2002·Application pending·0 cites
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