P

Inventor

CHEN YU-SEN

TW13 patents
⚠️ This page may combine multiple inventors who share the name “CHEN YU-SEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOBER CHEMICAL CORP

6 patents
US6860241B2Mar 1, 2005

Fuel filter including slow release additive

DOBER CHEMICAL CORP121 citations96
US6835218B1Dec 28, 2004

Fuel additive compositions

DOBER CHEMICAL CORP53 citations95
US6878309B2Apr 12, 2005

Controlled release cooling additive composition

DOBER CHEMICAL CORP16 citations90
US6607694B1Aug 19, 2003

Controlled release coolant additive composition

DOBER CHEMICAL CORP19 citations90
US7524434B2Apr 28, 2009

Controlled release cooling additive composition

DOBER CHEMICAL CORP4 citations60
US10336928B2Jul 2, 2019

Corrosion inhibited compositions and methods of using same

DOBER CHEMICAL CORP0 citations41

LOGITECH EUROPE SA

4 patents
US12444554B2Oct 14, 2025

Partial scanning in a hybrid switch array

LOGITECH EUROPE SA0 citations56
US12119187B1Oct 15, 2024

Partial scanning in a hybrid switch array

LOGITECH EUROPE SA0 citations56
US12345402B1Jul 1, 2025

Scroll wheel with lighting

LOGITECH EUROPE SA0 citations53
US12362750B2Jul 15, 2025

IR timing calibration for a key switch

LOGITECH EUROPE SA0 citations41

FLEETGUARD INC

1 patent
US7001531B2Feb 21, 2006

Sustained release coolant additive composition

FLEETGUARD INC24 citations90

CHINA PETROCHEMICAL DEV CORPORATION TAIPEI TAIWAN

1 patent
US10633325B1Apr 28, 2020

O-phenyl phenoxyalkyl acrylate and methods for producing the same

CHINA PETROCHEMICAL DEV CORPORATION TAIPEI TAIWAN0 citations42

CHINA PETROCHEMICAL DEV CORPORATION

1 patent
US10787408B1Sep 29, 2020

Method for producing 9,9-bis(3-phenyl-4-(2-hydroxyethoxy)phenyl)fluorene

CHINA PETROCHEMICAL DEV CORPORATION0 citations41