P

Inventor

KRETSCHMAR FRIEDRICH

DE9 patents
⚠️ This page may combine multiple inventors who share the name “KRETSCHMAR FRIEDRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GIESECKE & DEVRIENT GMBH

4 patents
US7849993B2Dec 14, 2010

Devices and method for the production of sheet material

GIESECKE & DEVRIENT GMBH69 citations95
US6726813B2Apr 27, 2004

Security device and method for producing it

GIESECKE & DEVRIENT GMBH44 citations95
US6382677B1May 7, 2002

Security element and method for producing same

GIESECKE & DEVRIENT GMBH61 citations95
US8382163B2Feb 26, 2013

Security paper

GIESECKE & DEVRIENT GMBH0 citations51

Schützmann Jürgen

2 patents
US9336640B2May 10, 2016

Security element for securing documents of value

Schützmann Jürgen4 citations67
US8740094B2Jun 3, 2014

Security element for protecting documents of value

Schützmann Jürgen0 citations38

HEIM MANFRED

1 patent
US8276945B2Oct 2, 2012

Security element provided with an optically-variable layer and method for the production thereof

HEIM MANFRED8 citations83

BURCHARD THEODOR

1 patent
US8622435B2Jan 7, 2014

Security element and method for producing the same

BURCHARD THEODOR1 citations41

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

1 patent
US12189157B2Jan 7, 2025

Semi-finished product, security element, methods of producing them and document of value

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations39