Inventor

KRIEG-KOWALD MARIANNE

US8 patents

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

FLEXPLAY TECHNOLOGIES INC

3 patents

US6780564B2Aug 24, 2004

Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant

FLEXPLAY TECHNOLOGIES INC104 citations97

US6982109B2Jan 3, 2006

Method for rendering surface layer of limited play disk lightfast

FLEXPLAY TECHNOLOGIES INC4 citations60

US7374804B2May 20, 2008

Method for rendering surface layer of limited play disk lightfast

FLEXPLAY TECHNOLOGIES INC0 citations50

SPERIAN EYE & FACE PROT INC

2 patents

US7688524B2Mar 30, 2010

Laser protective eyewear having improved glare protection

SPERIAN EYE & FACE PROT INC3 citations58

US7957077B2Jun 7, 2011

Laser protective eyewear having improved glare protection

SPERIAN EYE & FACE PROT INC0 citations47

SPECTRADISC CORP

1 patent

US6531262B1Mar 11, 2003

Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant

SPECTRADISC CORP35 citations91

SPERIAN EYE & FACE PROT INC A

1 patent

US7630128B2Dec 8, 2009

Optical filter panel having a narrow-width selective-wavelength attenuation and high visible light transmission

SPERIAN EYE & FACE PROT INC A13 citations77

MCW RES FOUND INC

1 patent

US7205002B2Apr 17, 2007

Method of making, and the use of cytotoxic agents containing elemental selenium

MCW RES FOUND INC1 citations45