LexDanaLexDanabeta
Inventor

Leon Petrakis

Inventor
Port Jefferson, NY, US

Overview

4→
Patents
1985–2000
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests36%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents27%
B09BDisposal of solid waste not otherwise provided for27%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids9%
PatentTitleYear
6,160,195'Use of reagents to convert chrysotile and amosite asbestos used as insulation or protection for metal surfaces'20006,005,158'Use of super acids to digest chrysotile and amosite asbestos in simple mixtures or matrices found in building materials compositions'19995,763,738'Chemical agents for conversion of chrysotile asbestos into non-hazardous materials'19984,526,681'Magnetic separation method utilizing a colloid of magnetic particles'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Patents assigned to PURDUE RESEARCH FOUNDATION (1)· patent assignee history
1985Based in Pittsburgh, PA, US· patent location history
1998Patents assigned to ASS UNIVERSITIES INC (1)· patent assignee history
1998–2000Based in Port Jefferson, NY, US· patent location history
1999–2000Patents assigned to BROOKHAVEN SCIENCE ASS LLC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BROOKHAVEN SCIENCE ASS LLC21999–2000
ASS UNIVERSITIES INC11998
PURDUE RESEARCH FOUNDATION11985
Locations
LocationPatentsSpan
Port Jefferson, New York, US31998–2000
Pittsburgh, Pennsylvania, US11985