Inventor

DOUGLAS DAVID H

US3 patents

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

MUELLER RAYMOND J

2 patents

US8103520B2Jan 24, 2012

Method and apparatus for selecting a supplemental product to offer for sale during a transaction

MUELLER RAYMOND J48 citations93

US8533003B2Sep 10, 2013

Method and apparatus for selecting a supplemental product to offer for sale during a transaction

MUELLER RAYMOND J2 citations55

WALKER DIGITAL LLC

1 patent

US7542919B1Jun 2, 2009

Method and apparatus for selecting a supplemental product to offer for sale during a transaction

WALKER DIGITAL LLC68 citations94