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Inventor

Joseph Lem

Inventor
London, CA

Overview

2→
Patents
2003–2005
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge25%
A61LMethods or apparatus for sterilising materials or objects in general13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
B08BCleaning in general13%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light13%
G01NInvestigating or analysing materials by determining their chemical or physical properties13%
H05BElectric heating13%
PatentTitleYear
6,863,078'Fluid treatment system and cleaning apparatus therefor'20056,518,577'Optical radiation sensor system with cleaning device'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2005Patents assigned to TROJAN TECHN INC (2)· patent assignee history
2003–2005Based in London, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TROJAN TECHN INC22003–2005
Locations
LocationPatentsSpan
London, CA22003–2005