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Patents Grantslast 30 patents

Information Patent Grant
Press-type overflow drainage device for water container
- Patent number 11,441,301
- Issue date Sep 13, 2022
- NINGBO BOSHENG VALVE & FITTING CO., LTD CO., LTD.
- Difeng Cen
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
A PRESS-TYPE OVERFLOW DRAINAGE DEVICE FOR WATER CONTAINER
- Publication number 20210180302
- Publication date Jun 17, 2021
- Ningbo Bosheng Valve & Fitting Co., Ltd Co., Ltd.
- Difeng CEN
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Drainage device for Kitchen and Bath Facilities
- Publication number 20110271442
- Publication date Nov 10, 2011
- Difeng Cen
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Open/close Device of a Washing Tank Drain System
- Publication number 20100282995
- Publication date Nov 11, 2010
- Difeng Cen
- E03 - WATER SUPPLY SEWERAGE