Learn more

QI YUFEN

Overview
  • Total Patents
    20
About

QI YUFEN has a total of 20 patent applications. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets electrical machinery and energy, optics and pharmaceuticals are PROFESSIONAL COMM S A, NANJING LONGMA COMMUNICATION ENG CO LTD and ATTEMA B V.

Patent filings in countries

World map showing QI YUFENs patent filings in countries
# Country Total Patents
#1 China 20

Patent filings per year

Chart showing QI YUFENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zuoguang Zhang 8
#2 Xing Zhiguang 7
#3 Zhiguang Xing 4
#4 Zhang Zuoguang 1

Latest patents

Publication Filing date Title
CN102313942A Optical cable connecting shell suitable for midway branch connecting operation
CN102313943A Optical connecting shell with joint sealing waterproof auxiliary device
CN104142550A Optical cable wiring shell with caulking waterproof auxiliary device
CN106886077A Communication cable with connecting portion and hollow column jacket and connection portion continues separated time shell
CN101882777A Cable joint box capable of adopting different modes to conduct waterproofing treatment on main cables
CN104577938A Cable junction box capable of waterproofing main cables in different manners
CN104898219A Communication fiber optic cable connection box with elastic rubber shrinkable tube waterproof device
CN101771257A Cable fixing device outside thermal shrinkage type cable connection box
CN101450120A Medicine composition for treating melancholia using ginseng, Chinese date as raw material and preparation method thereof
CN101450063A Oral medicine for treating hypochondria
CN103919875A Method for preparing medicinal composition for treating hypochondria and anxiety
CN101450103A Medicine composition for treating hypochondria and anxiety neurosis
CN101450070A Anti-melancholia medicine using Chinese date Camp as raw material
CN102153608A Method for preparing raw material containing Chinese date cyclic adenosine monophosphate of medicinal composition with multi-target receptor afteraction mechanism for treating melancholia
CN101450104A Medicine composition for treating anxiety neurosis
CN101450121A Medicine composition for treating melancholia using glycyrrhiza, Chinese date as raw material and preparation method thereof
CN101450062A Medicine composition for treating melancholia using multi-target receptor after-action mechanism