Inventor
HELTERLINE BRIAN L
US14 patents
⚠️ This page may combine multiple inventors who share the name “HELTERLINE BRIAN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
6 patentsUS6039430AMar 21, 2000
Method and apparatus for storing and retrieving information on a replaceable printing component
HEWLETT PACKARD CO325 citations99
US6089687AJul 18, 2000
Method and apparatus for specifying ink volume in an ink container
HEWLETT PACKARD CO127 citations97
US6264301B1Jul 24, 2001
Method and apparatus for identifying parameters in a replaceable printing component
HEWLETT PACKARD CO90 citations96
US6488352B1Dec 3, 2002
Method and apparatus for checking compatibility of a replaceable printing component
HEWLETT PACKARD CO29 citations92
US6345891B1Feb 12, 2002
Method and apparatus for specifying ink volume in a multichamber ink container
HEWLETT PACKARD CO31 citations92
US6196651B1Mar 6, 2001
Method and apparatus for detecting the end of life of a print cartridge for a thermal ink jet printer
HEWLETT PACKARD CO37 citations85
HEWLETT PACKARD DEVELOPMENT CO
3 patentsUS6722753B2Apr 20, 2004
Method and apparatus for checking compatibility of a replaceable printing component
HEWLETT PACKARD DEVELOPMENT CO31 citations92
US7175266B2Feb 13, 2007
Replaceable memory device for a consumable substance container, and methods
HEWLETT PACKARD DEVELOPMENT CO9 citations73
US11235525B2Feb 1, 2022
Container for an additive manufacturing system
HEWLETT PACKARD DEVELOPMENT CO0 citations61