Patent Leaderboard
USPTO Patent Rankings
Data through Sept 30, 2025
Search
Companies
Inventors
Cities
States
All Time
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
Home
›
Companies
›
Ningbo Richen Electrical Appliance Co.
NC
Ningbo Richen Electrical Appliance Co.
— 3 Patents in 2021
Rank
(2021):
#10,675
of
31,507
Top 35%
2
inventors
3
Patents 2021
Top Inventors at Ningbo Richen Electrical Appliance Co.
2021
Showing
1–2
of
2
inventors
Rank
Name
Patents
1
Yin Zhou
3
2
Youbin Wang
1
Related Companies
Nippharma Co.
3
Nio Nextev Limited
3
Nintex Uk
3
Ningbo Yinzhou Jiasheng Pump Electric Machinery Factory
3
Ningbo Weie Electronics Technology
3
Ningbo Jinghui Opto-Electronic Co.
3
Ningbo Institute Of Materials Technology & Engineering, Chinese Academy Of Sciences
3
Ningbo Hongfu Aluminium & Plastic Electric Appliance Co.
3
Ningbo Gecen Promotion & Gift Co.
3