Inventor

Jack Lau

Inventor

Hong Kong, CN

Overview

1992–2010

Patent span

Physics

Primary field (CPC G)

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer23%

G01RMeasuring electric variables15%

A63HToys, e.g. tops, dolls, hoops or building blocks8%

D21FPaper-making machines8%

F26BDrying solid materials or objects by removing liquid therefrom8%

G06FElectric digital data processing8%

H03KPulse technique8%

H04SStereophonic systems8%

LOC148%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1992–1996Based in SAN FRANCISCO, HK· patent location history

2002Patents assigned to INFINITE DREAM MACHINE LTD (1)· patent assignee history

2002–2010Based in Hong Kong, CN· patent location history

2003Based in Roswell, GA, US· patent location history

2007–2010Patents assigned to PERCEPTION DIGITAL LTD (3)· patent assignee history

2009Patents assigned to CHAN KAI KIN (1)· patent assignee history

2009Patents assigned to CHAN WING CHAU (1)· patent assignee history

2009Patents assigned to CHENG ROGER SHU KWAN (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations