P

Inventor

GRUBBA ROBERT A

US8 patents
⚠️ This page may combine multiple inventors who share the name “GRUBBA ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LIONEL LLC

3 patents
US6441570B1Aug 27, 2002

Controller for a model toy train set

LIONEL LLC55 citations92
US6485347B1Nov 26, 2002

Puffing fan driven smoke unit for a model train

LIONEL LLC23 citations87
US6616506B1Sep 9, 2003

Inserted molded traction tire for a model toy train

LIONEL LLC4 citations57

GRUBBA ROBERT A

2 patents
US7749040B2Jul 6, 2010

Smoke production system for model locomotive

GRUBBA ROBERT A4 citations58
US7634411B2Dec 15, 2009

Synchronized externally generated sound effects for model trains

GRUBBA ROBERT A4 citations58

SCHLUMBERGER TECHNOLOGY CORP

1 patent
US5188173AFeb 23, 1993

Pressure control system and cable guiding device for use in drilling wells

SCHLUMBERGER TECHNOLOGY CORP23 citations86

NC TRAIN ACQUISITION L L C

1 patent
US7215092B2May 8, 2007

Radio-linked, bi-directional control system for model electric trains

NC TRAIN ACQUISITION L L C31 citations84

LIONEL TRAINS INC

1 patent
US6186074B1Feb 13, 2001

Drive assembly for model train

LIONEL TRAINS INC3 citations55