Inventor

Stephen Wai-Yan Lai

Inventor

Hong Kong, CN

Overview

2007–2013

Patent span

Physics

Primary field (CPC G)

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G09Gprimary

G09GArrangements or circuits for control of indicating devices using static means to present variable information50%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems17%

H05BElectric heating17%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications17%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2007–2013Patents assigned to SOLOMON SYSTECH LTD (5)· patent assignee history

2007–2010Based in Kowloon, HK· patent location history

2008Based in Chandler, AZ, US· patent location history

2012–2013Patents assigned to CHAN WING CHI STEPHEN (2)· patent assignee history

2012–2013Patents assigned to LAI STEPHEN WAI-YAN (2)· patent assignee history

2012Patents assigned to CHOI WAI PAK (1)· patent assignee history

2012–2013Based in Hong Kong, CN· patent location history

2013Patents assigned to CHENG WAI KIN JOSH (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations