Inventor

Dennis A. Clifford

Inventor

Houston, TX, US

Overview

1993–2014

Patent span

Chemistry

Primary field (CPC C)

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

C02Fprimary

C02FTreatment of water, waste water, sewage, or sludge24%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry10%

B09CReclamation of contaminated soil10%

B82YSpecific uses or applications of nanostructures10%

E21BEarth or rock drilling10%

G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment10%

B01DSeparation5%

C01BNon-metallic elements5%

C01GCompounds containing metals not covered by subclasses c01d or c01f5%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1993–1998Patents assigned to GROUNDWATER SERVICES INC (2)· patent assignee history

1993–2014Based in Houston, TX, US· patent location history

2010–2012Patents assigned to INFRAMAT CORP (2)· patent assignee history

2010–2012Patents assigned to UNIV HOUSTON (2)· patent assignee history

2012–2014Patents assigned to CLIFFORD DENNIS A (2)· patent assignee history

2014Patents assigned to ALDRIDGE LEE (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Houston, Texas, US	5	1993–2014