Inventor
LIN FU-CHI
TW26 patents
⚠️ This page may combine multiple inventors who share the name “LIN FU-CHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YOUTH TOY ENTPR CO LTD
16 patentsUS7063587B1Jun 20, 2006
Building block
YOUTH TOY ENTPR CO LTD39 citations92
USD512108SNov 29, 2005
Building block
YOUTH TOY ENTPR CO LTD38 citations92
US6457247B1Oct 1, 2002
Protractor with an auxiliary ruler
YOUTH TOY ENTPR CO LTD28 citations92
US6457899B1Oct 1, 2002
Union for butting two plastic bottles reused as teaching aid
YOUTH TOY ENTPR CO LTD41 citations92
US6322414B1Nov 27, 2001
Universal blocks
YOUTH TOY ENTPR CO LTD46 citations92
USD437423SFeb 6, 2001
Block
YOUTH TOY ENTPR CO LTD30 citations92
US6739875B1May 25, 2004
Teach-aiding weight set
YOUTH TOY ENTPR CO LTD15 citations84
USD476382SJun 24, 2003
Bear
YOUTH TOY ENTPR CO LTD13 citations84
USD502114SFeb 22, 2005
Toy counterpoise
YOUTH TOY ENTPR CO LTD6 citations73
USD493498SJul 27, 2004
Bear
YOUTH TOY ENTPR CO LTD8 citations73
USD470547SFeb 18, 2003
Counterpoise bear
YOUTH TOY ENTPR CO LTD12 citations73
USD585939SFeb 3, 2009
Strip for teaching-aid
YOUTH TOY ENTPR CO LTD2 citations62
USD545923SJul 3, 2007
Building block
YOUTH TOY ENTPR CO LTD5 citations62
USD544552SJun 12, 2007
Building block
YOUTH TOY ENTPR CO LTD5 citations62
USD505981SJun 7, 2005
Building block
YOUTH TOY ENTPR CO LTD5 citations62
USD498140SNov 9, 2004
Carton
YOUTH TOY ENTPR CO LTD4 citations62
RICHTEK TECHNOLOGY CORP
5 patentsUS10523032B2Dec 31, 2019
Charging apparatus with multiple power paths
RICHTEK TECHNOLOGY CORP4 citations70
US12362604B2Jul 15, 2025
Wireless power transmitter circuit having low power pinging and control circuit and method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US12348054B2Jul 1, 2025
Wireless power transmitter circuit having OVP control for receiver circuit and control circuit and method thereof
RICHTEK TECHNOLOGY CORP0 citations52
US11323299B2May 3, 2022
Communication signal demodulation apparatus and communication signal demodulation method
RICHTEK TECHNOLOGY CORP0 citations47
US12362601B2Jul 15, 2025
Wireless power transmitter circuit and method capable of detecting wireless power receiver and foreign object
RICHTEK TECHNOLOGY CORP0 citations44