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Inventor

GRINNALL MICHAEL L

US5 patents
⚠️ This page may combine multiple inventors who share the name “GRINNALL MICHAEL L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CUSTOM PAK INC

3 patents
US7393495B2Jul 1, 2008

Methods and apparatuses for the formation of blow molded objects

CUSTOM PAK INC7 citations69
US7578959B2Aug 25, 2009

Method and apparatus for creating a blow molded case

CUSTOM PAK INC6 citations52
US7455513B2Nov 25, 2008

System for creating blow molded case

CUSTOM PAK INC2 citations51

JOHNSON LEVEL & TOOL MFG

1 patent
US7172067B2Feb 6, 2007

Level case with positioning indentations

JOHNSON LEVEL & TOOL MFG8 citations67

KNAPPER ALAN W

1 patent
US8283007B2Oct 9, 2012

Blow molded receptacle and system for making same

KNAPPER ALAN W0 citations28