Inventor

BARNHART THOMAS L

US5 patents

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

(unassigned)

2 patents

US6296900B1Oct 2, 2001

Method of making hidden image game piece

25 citations89

US6629888B1Oct 7, 2003

Hidden image game piece

5 citations70

CASSETTE PRODUCTIONS UNLIMITED

1 patent

US5401032AMar 28, 1995

Mystery puzzle game

CASSETTE PRODUCTIONS UNLIMITED62 citations90

BARNHART THOMAS L

1 patent

US5984367ANov 16, 1999

Hidden image game piece

BARNHART THOMAS L52 citations87

WS PACKAGING GROUP INC

1 patent

US7747472B2Jun 29, 2010

Hidden image game piece

WS PACKAGING GROUP INC8 citations81