P

Inventor

DUAN HAIFENG

CN11 patents
⚠️ This page may combine multiple inventors who share the name “DUAN HAIFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUAWEI TECH CO LTD

4 patents
US9510371B2Nov 29, 2016

Method and apparatus for controlling service transmission

HUAWEI TECH CO LTD3 citations68
US9288828B2Mar 15, 2016

Method, apparatus and system for accessing service by mobile station

HUAWEI TECH CO LTD0 citations46
US9179004B2Nov 3, 2015

Method and apparatus for charging

HUAWEI TECH CO LTD0 citations39
US9167045B2Oct 20, 2015

Method, apparatus and system for intercutting advertisement

HUAWEI TECH CO LTD0 citations39

DUAN HAIFENG

2 patents
US8326262B2Dec 4, 2012

Advice of charging method, system and mobile terminal

DUAN HAIFENG5 citations57
US8649761B2Feb 11, 2014

Service charging method, service charging system, network access server and protocol resolving device

DUAN HAIFENG0 citations35

BEIJING JIYUAN BIOLOGICAL TECH CO LTD

2 patents
US12414966B2Sep 16, 2025

Method of treating diabetes with FGF21 and GLP1 double gene-modified cell

BEIJING JIYUAN BIOLOGICAL TECH CO LTD0 citations54
US11752173B2Sep 12, 2023

FGF21 and GLP1 double gene-modified mesenchymal stem cell and use in treating a metabolic disease

BEIJING JIYUAN BIOLOGICAL TECH CO LTD1 citations54

CYGNUS BIOSCIENCES BEIJING CO LTD

2 patents
US12012632B2Jun 18, 2024

Methods for obtaining and correcting biological sequence information

CYGNUS BIOSCIENCES BEIJING CO LTD0 citations54
US11845984B2Dec 19, 2023

Methods for obtaining and correcting biological sequence information

CYGNUS BIOSCIENCES BEIJING CO LTD0 citations54

UNIV BEIJING

1 patent
US10738356B2Aug 11, 2020

Methods for obtaining and correcting biological sequence information

UNIV BEIJING2 citations67