Inventor
DRINKWATER KENNETH JOHN
GB11 patents
⚠️ This page may combine multiple inventors who share the name “DRINKWATER KENNETH JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RUE DE INT LTD
7 patentsUS6089614AJul 18, 2000
Security device
RUE DE INT LTD203 citations98
US7054042B2May 30, 2006
Optically variable security device
RUE DE INT LTD67 citations97
US6822769B1Nov 23, 2004
Security device
RUE DE INT LTD79 citations97
US6369919B1Apr 9, 2002
Holographic security device
RUE DE INT LTD110 citations97
US6712399B1Mar 30, 2004
Security device
RUE DE INT LTD126 citations94
US7446915B2Nov 4, 2008
Diffuse reflector and method
RUE DE INT LTD12 citations84
US7251077B2Jul 31, 2007
Diffuse reflector and method
RUE DE INT LTD14 citations84