Inventor

JOHNSTON RAYMOND PATRICK

US3 patents

Patents

3 patents

US6555261B1Apr 29, 2003

Microstructured flow fields

3M INNOVATIVE PROPERTIES CO49 citations93

US6690360B2Feb 10, 2004

Liquid proof switch array

3M INNOVATIVE PROPERTIES CO12 citations67

US7091952B2Aug 15, 2006

Liquid proof switch array

3M INNOVATIVE PROPERTIES CO5 citations56