Ching; Ho

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ching; Ho.The latest application filed is for "method of marking material and system therefore, and material marked according to same method".

Company Profile

0.7.8

Ching; Ho - Kowloon HK
Ching; Ho - Cheung Sha Wan HK
Ching; Ho - Shatin HK

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method of providing markings to precious stones including gemstones and diamonds, and markings and marked precious stones marked according to such a method Grant 10,475,355 - Hui , et al. Nov	2019-11-12
Method Of Marking Material And System Therefore, And Material Marked According To Same Method App 20180193814 - HUI; Koon Chung ; et al.	2018-07-12
Silicon hairspring Grant 9,903,049 - Ching , et al. February 27, 2	2018-02-27
Method of marking material and system therefore, and material marked according to same method Grant 9,901,895 - Hui , et al. February 27, 2	2018-02-27
Hairspring for a time piece and hairspring design for concentricity Grant 9,658,598 - Ching May 23, 2	2017-05-23
Silicon Hairspring App 20160238994 - CHING; Ho ; et al.	2016-08-18
Method Of Providing Markings To Precious Stones Including Gemstones And Diamonds, And Markings And Marked Precious Stones Marked According To Such A Method App 20150101365 - HUI; Koon Chung ; et al.	2015-04-16
Silicon Overcoil Balance Spring App 20150029828 - WANG; Ying Nan ; et al.	2015-01-29
Method Of Marking Material And System Therefore, And Material Marked According To Same Method App 20140356577 - HUI; Koon Chung ; et al.	2014-12-04
Stress-relief elastic structure of hairspring collet Grant 8,882,341 - Chu , et al. November 11, 2	2014-11-11
Stress-relief Elastic Structure Of Hairspring Collet App 20140198627 - CHU; Siu Kay ; et al.	2014-07-17
Oscillator system Grant 8,770,828 - Ching , et al. July 8, 2	2014-07-08
Hairspring For A Time Piece And Hairspring Design For Concentricity App 20140022873 - CHING; Ho	2014-01-23
Oscillator System App 20110222377 - CHING; Ho ; et al.	2011-09-15

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