Inventor

Chung Loong Choy

Inventor

Kowloon, HK

Overview

3→

Patents

2001–2003

Patent span

Performing operations

Primary field (CPC B)

Patents· 3 as inventor

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

B06Bprimary

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general29%

B23KSoldering or unsoldering29%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1029%

H10NElectric solid-state devices not otherwise provided for14%

PatentTitleYear

6,597,084'Ring-shaped piezoelectric transformer having an inner and outer electrode'2003 6,286,747'Ultrasonic transducer'2001 6,190,497'Ultrasonic transducer'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2003Patents assigned to UNIV HONG KONG POLYTECHNIC (3)· patent assignee history

2001Based in Kowloon, HK· patent location history

2003Based in Shatin, HK· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV HONG KONG POLYTECHNIC	3	2001–2003

Locations

Location	Patents	Span
Kowloon, HK	2	2001
Shatin, HK	1	2003