Inventor
RAVENSCROFT KEITH N
US5 patents
Patents
5 patentsUS6309476B1Oct 30, 2001
Composition and method for metal coloring process
BIRCHWOOD LAB INC68 citations94
US6899769B2May 31, 2005
Composition and method for metal coloring process
BIRCHWOOD LAB INC13 citations91
US6576346B1Jun 10, 2003
Composition and method for metal coloring process
BIRCHWOOD LAB INC20 citations91
US6695931B1Feb 24, 2004
Composition and method for metal coloring process
BIRCHWOOD LAB INC8 citations72
US6527873B2Mar 4, 2003
Composition and method for metal coloring process
BIRCHWOOD LAB INC9 citations72