Rongyu ZHANG

Person

Xiamen, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Effort-saving flap-type drain valve
- Patent number 11,898,337
- Issue date Feb 13, 2024
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Shunxing Zhou
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Double-flush light-touch drain valve and double-flush control method
- Patent number 9,945,110
- Issue date Apr 17, 2018
- Xiamen R&T Plumbing Technology Co., Ltd.
- Haibin Chen
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Double flow control mechanism of a soft touch drain valve and a dou...
- Patent number 9,790,675
- Issue date Oct 17, 2017
- Xiamen R&T Plumbing Technology Co., Ltd.
- Haibin Chen
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Dual-drainage switching mechanism of water tank
- Patent number 9,587,387
- Issue date Mar 7, 2017
- Xiamen R&T Plumbing Technology Co., Ltd.
- Rongyu Zhang
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Auxiliary siphon device for the toilet
- Patent number 8,266,732
- Issue date Sep 18, 2012
- Xiamen R&T Plumbing Technology Co., Ltd.
- Bing Wang
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
WATER TANK DRAINAGE VOLUME CONTROL STRUCTURE, AND TOILET
- Publication number 20240093472
- Publication date Mar 21, 2024
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Rongyu ZHANG
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
EFFORT-SAVING FLAP-TYPE DRAIN VALVE
- Publication number 20230089999
- Publication date Mar 23, 2023
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Shunxing ZHOU
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
DOUBLE FLOW CONTROL MECHANISM OF A SOFT TOUCH DRAIN VALVE AND A DOU...
- Publication number 20160154409
- Publication date Jun 2, 2016
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Haibin CHEN
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
DOUBLE-FLUSH LIGHT-TOUCH DRAIN VALVE AND DOUBLE-FLUSH CONTROL METHOD
- Publication number 20160153182
- Publication date Jun 2, 2016
- Xiamen R&T Plumbing Technology Co.,Ltd.
- Haibin CHEN
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
WATER DRAIN ACCELERATING DEVICE
- Publication number 20140216583
- Publication date Aug 7, 2014
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Youping JIANG
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
DUAL-DRAINAGE SWITCHING MECHANISM OF WATER TANK
- Publication number 20130161333
- Publication date Jun 27, 2013
- XIAMEN R&T PLUMBING TECHNOLOGY CO., LTD.
- Rongyu ZHANG
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
AUXILIARY SIPHON DEVICE FOR THE TOILET
- Publication number 20120240322
- Publication date Sep 27, 2012
- R&T (Xiamen) Plumbing Inc.
- Bing WANG
- E03 - WATER SUPPLY SEWERAGE

Rongyu ZHANG

Person

Patents Grantslast 30 patents

Effort-saving flap-type drain valve

Double-flush light-touch drain valve and double-flush control method

Double flow control mechanism of a soft touch drain valve and a dou...

Dual-drainage switching mechanism of water tank

Auxiliary siphon device for the toilet

Patents Applicationslast 30 patents

WATER TANK DRAINAGE VOLUME CONTROL STRUCTURE, AND TOILET

EFFORT-SAVING FLAP-TYPE DRAIN VALVE

DOUBLE FLOW CONTROL MECHANISM OF A SOFT TOUCH DRAIN VALVE AND A DOU...

DOUBLE-FLUSH LIGHT-TOUCH DRAIN VALVE AND DOUBLE-FLUSH CONTROL METHOD

WATER DRAIN ACCELERATING DEVICE

DUAL-DRAINAGE SWITCHING MECHANISM OF WATER TANK

AUXILIARY SIPHON DEVICE FOR THE TOILET