Inventor

KIRCHHOFF DAVID

US4 patents

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

WEIGHT WATCHERS INTERNATIONAL

1 patent

US7523040B2Apr 21, 2009

Software and hardware system for enabling weight control

WEIGHT WATCHERS INTERNATIONAL67 citations92

KIRCHHOFF DAVID

1 patent

US8595023B2Nov 26, 2013

Weight control system with meal plan and journal

KIRCHHOFF DAVID30 citations86

WEIGHTWATCHERS COM INC

1 patent

US7361143B2Apr 22, 2008

Weight control system having varying meal plans and meal planning schemes

WEIGHTWATCHERS COM INC37 citations86

BALLANTINE ARNE W

1 patent

US8420256B2Apr 16, 2013

Controlling leakage in an electrochemical cell

BALLANTINE ARNE W1 citations48