Inventor

ZHANG DEFU

US4 patents

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

HEWLETT PACKARD DEVELOPMENT CO

2 patents

US7272148B2Sep 18, 2007

Non-ALG approach for application layer session traversal of IPv6/IPv4 NAT-PT gateway

HEWLETT PACKARD DEVELOPMENT CO24 citations87

US8042166B2Oct 18, 2011

Printing via user equipment

HEWLETT PACKARD DEVELOPMENT CO0 citations34

UNIV BOHAI

1 patent

US11098285B2Aug 24, 2021

Virulent Pseudomonas fluorescens phage ΦPf1901, and phage ΦPf901 preparation and application thereof

UNIV BOHAI0 citations50

CHANGCHUN INST OPTICS FINE MECH & PHYSICS CAS

1 patent

US12352624B2Jul 8, 2025

Coaxial four-reflection optical system for visible light long-wave infrared common-aperture imaging

CHANGCHUN INST OPTICS FINE MECH & PHYSICS CAS0 citations38