Inventor
PIERSON MARTIN D
US9 patents
⚠️ This page may combine multiple inventors who share the name “PIERSON MARTIN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LIONEL LLC
7 patentsUS7297045B2Nov 20, 2007
Smart smoke unit
LIONEL LLC90 citations95
US6441570B1Aug 27, 2002
Controller for a model toy train set
LIONEL LLC55 citations92
US7350754B2Apr 1, 2008
Block controller
LIONEL LLC28 citations91
US6676473B2Jan 13, 2004
Smart smoke unit
LIONEL LLC14 citations81
US6813124B1Nov 2, 2004
Transformer over-current protection with RMS sensing and voltage fold-back
LIONEL LLC7 citations72
US7125309B2Oct 24, 2006
Smart smoke unit
LIONEL LLC5 citations71
US7081829B2Jul 25, 2006
Mars unit lamp driver
LIONEL LLC0 citations51