Inventor

Godfrey Chi-Fung Chan

Inventor

Hong Kong, CN

Overview

2004–2021

Patent span

Human necessities

Primary field (CPC A)

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes20%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%

C12NMicroorganisms or enzymes20%

C12MApparatus for enzymology or microbiology10%

A61FFilters implantable into blood vessels5%

A61LMethods or apparatus for sterilising materials or objects in general5%

B22FWorking metallic powder5%

B23KSoldering or unsoldering5%

E21BEarth or rock drilling5%

LOC095%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2004Based in Aberdeen, CN· patent location history

2014–2015Patents assigned to CHAN BARBARA PUI (3)· patent assignee history

2014–2015Patents assigned to CHAN GODFREY CHI-FUNG (3)· patent assignee history

2014Patents assigned to CHAN DANNY (2)· patent assignee history

2014Patents assigned to UNIV HONG KONG (2)· patent assignee history

2014Based in Causeway Bay, HK· patent location history

2015–2016Patents assigned to VERSITECH LTD (2)· patent assignee history

2015–2016Based in Hong Kong, CN· patent location history

2021Based in Singapore, SG· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations