Qianyan Cheng

Person

Carmichael, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Narrow backset auto-latching mortise lock for sliding door
- Patent number 11,591,835
- Issue date Feb 28, 2023
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electrified mortise lock for sliding door
- Patent number 11,408,198
- Issue date Aug 9, 2022
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Auto-latching/locking mortise lock for sliding door
- Patent number 11,377,874
- Issue date Jul 5, 2022
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Cylinder assembly with rotating winged latch bolt for sliding door...
- Patent number 11,306,510
- Issue date Apr 19, 2022
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Surface mounted barn door privacy lock
- Patent number 11,047,151
- Issue date Jun 29, 2021
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Lock body with adjustable strike plate for sliding doors
- Patent number 10,422,164
- Issue date Sep 24, 2019
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Barn door with privacy lock
- Patent number 10,081,966
- Issue date Sep 25, 2018
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Easily-assembled modular door lock
- Patent number 10,066,420
- Issue date Sep 4, 2018
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
NARROW BACKSET AUTO-LATCHING MORTISE LOCK FOR SLIDING DOOR
- Publication number 20220290475
- Publication date Sep 15, 2022
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
TAMPER PROOF WALL MOUNTED STRIKE ASSEMBLY FOR BARN DOOR
- Publication number 20220178174
- Publication date Jun 9, 2022
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
CYLINDER ASSEMBLY WITH ROTATING WINGED LATCH BOLT FOR SLIDING DOOR...
- Publication number 20210222465
- Publication date Jul 22, 2021
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
ELECTRIFIED MORTISE LOCK FOR SLIDING DOOR
- Publication number 20210054655
- Publication date Feb 25, 2021
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
AUTO-LATCHING/LOCKING MORTISE LOCK FOR SLIDING DOOR
- Publication number 20210054663
- Publication date Feb 25, 2021
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
SURFACE MOUNTED BARN DOOR PRIVACY LOCK
- Publication number 20190024407
- Publication date Jan 24, 2019
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
BARN DOOR WITH PRIVACY LOCK
- Publication number 20180112435
- Publication date Apr 26, 2018
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
LOCK BODY WITH ADJUSTABLE STRIKE PLATE FOR SLIDING DOORS
- Publication number 20160208526
- Publication date Jul 21, 2016
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
EASILY-ASSEMBLED MODULAR DOOR LOCK
- Publication number 20150292241
- Publication date Oct 15, 2015
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Universal Multipoint Lock Lever Set For Patio Doors With Non-Standa...
- Publication number 20130056612
- Publication date Mar 7, 2013
- Qianyan Cheng
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Qianyan Cheng

Person

Patents Grantslast 30 patents

Narrow backset auto-latching mortise lock for sliding door

Electrified mortise lock for sliding door

Auto-latching/locking mortise lock for sliding door

Cylinder assembly with rotating winged latch bolt for sliding door...

Surface mounted barn door privacy lock

Lock body with adjustable strike plate for sliding doors

Barn door with privacy lock

Easily-assembled modular door lock

Patents Applicationslast 30 patents

NARROW BACKSET AUTO-LATCHING MORTISE LOCK FOR SLIDING DOOR

TAMPER PROOF WALL MOUNTED STRIKE ASSEMBLY FOR BARN DOOR

CYLINDER ASSEMBLY WITH ROTATING WINGED LATCH BOLT FOR SLIDING DOOR...

ELECTRIFIED MORTISE LOCK FOR SLIDING DOOR

AUTO-LATCHING/LOCKING MORTISE LOCK FOR SLIDING DOOR

SURFACE MOUNTED BARN DOOR PRIVACY LOCK

BARN DOOR WITH PRIVACY LOCK

LOCK BODY WITH ADJUSTABLE STRIKE PLATE FOR SLIDING DOORS

EASILY-ASSEMBLED MODULAR DOOR LOCK

Universal Multipoint Lock Lever Set For Patio Doors With Non-Standa...