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Inventor

David R. Spears

Inventor
Laguna Niguel, CA, US

Overview

5→
Patents
1994–2000
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 5 as inventor

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

A47Kprimary
A47KSanitary equipment20%
C02FTreatment of water, waste water, sewage, or sludge20%
F23GCremation furnaces20%
Y02ATechnologies for adaptation to climate change20%
B01DSeparation10%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management10%
PatentTitleYear
6,139,744'Waste treatment device and method employing the same'20006,048,452'Waste treatment device and method employing the same'2000D0366094'Counter-top water purification system'19965,354,464'Multi-port connecting device'1994D0350384'Purified water dispenser'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to WATER FACTORY SYSTEMS (2)· patent assignee history
1994–2000Based in Laguna Niguel, CA, US· patent location history
1996Patents assigned to WATER FACTORY SYSTEMS INC (1)· patent assignee history
2000Patents assigned to MICROSEPTEC INC (1)· patent assignee history
2000Based in Aliso Viejo, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WATER FACTORY SYSTEMS21994
MICROSEPTEC INC12000
WATER FACTORY SYSTEMS INC11996
Locations
LocationPatentsSpan
Laguna Niguel, California, US41994–2000
Aliso Viejo, California, US12000