P

Inventor

KELLER MARIO

DE14 patents
⚠️ This page may combine multiple inventors who share the name “KELLER MARIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GIESECKE & DEVRIENT GMBH

4 patents
US7479320B2Jan 20, 2009

Security element and method for producing the same

GIESECKE & DEVRIENT GMBH44 citations92
US7758078B2Jul 20, 2010

Security element and method for producing the same

GIESECKE & DEVRIENT GMBH17 citations83
US7637537B2Dec 29, 2009

Laminated multi-layer card with an inlaid security element in the form of relief structures

GIESECKE & DEVRIENT GMBH9 citations77
US7989055B2Aug 2, 2011

Security element and method for producing the same

GIESECKE & DEVRIENT GMBH5 citations62

KELLER MARIO

3 patents
US8603615B2Dec 10, 2013

Security element

KELLER MARIO9 citations82
US8449969B2May 28, 2013

Security element for security papers and valuable documents

KELLER MARIO6 citations71
US8920663B2Dec 30, 2014

Production of a security element provided with colored micro-depressions

KELLER MARIO1 citations50

HOFFMULLER WINFRIED

2 patents
US9399366B2Jul 26, 2016

Security element

HOFFMULLER WINFRIED9 citations83
US8685488B2Apr 1, 2014

Method for producing a microstructure

HOFFMULLER WINFRIED9 citations82

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

2 patents
US11745474B2Sep 5, 2023

Composite glass with an intermediate film that changes colour depending on the viewing angle

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH0 citations58
US10486455B2Nov 26, 2019

Application device

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH1 citations58

BURCHARD THEO

1 patent
US8333870B2Dec 18, 2012

Security paper

BURCHARD THEO13 citations76

MANN & HUMMEL GMBH

1 patent
US9486719B2Nov 8, 2016

Filter element, device for folding a filter medium web and process for producing a zigzag-folded filter element

MANN & HUMMEL GMBH6 citations72

HEIM MANFRED

1 patent
US8317231B2Nov 27, 2012

Security element with metallization

HEIM MANFRED3 citations60