Inventor

David E. Dana

Inventor

Pittsburgh, PA, US

Overview

1986–2013

Patent span

Chemistry

Primary field (CPC C)

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

C08Jprimary

C08JWorking-up15%

Y10TTechnical subjects covered by former us classification15%

C03CChemical composition of glasses, glazes or vitreous enamels12%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds12%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients12%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds8%

H04LTransmission of digital information, e.g. telegraphic communication8%

H04WWireless communication networks8%

B29CShaping or joining of plastics4%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1986–1999Patents assigned to PPG INDUSTRIES INC (8)· patent assignee history

1986–1999Based in Pittsburgh, PA, US· patent location history

1992Patents assigned to UNION CARBIDE CHEM PLASTIC (1)· patent assignee history

2013Patents assigned to DANA DAVID (2)· patent assignee history

2013Patents assigned to DEPRUN JEAN-FRANCOIS (2)· patent assignee history

2013Patents assigned to LG ELECTRONICS INC (2)· patent assignee history

2013Based in Anyang-si, KR· patent location history

2013Based in Nogent sur Marne, FR· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations