Inventor

Bach Dao

Inventor

Nieuw-Vennep, NL

Overview

2002–2007

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

C09Kprimary

C09KMaterials for miscellaneous applications, not provided for elsewhere37%

C04BLime, magnesia35%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

Y02PClimate change mitigation technologies in the production or processing of goods4%

E21BEarth or rock drilling2%

PatentTitleYear

7,238,733'Storable water-silica suspensions and methods'2007 7,091,160'Methods and compositions for reducing subterranean formation permeabilities'2006 7,060,129'Process for controlling gas migration during well cementing'2006 6,936,574'Process for controlling gas migration during well cementing'2005 6,814,798'Storable water-microsphere suspensions for use in well cements and methods'2004 6,811,603'Methods, well cement compositions and lightweight additives therefor'2004 6,800,128'Whey protein retarder'2004 6,776,237'Lightweight well cement compositions and methods'2004 6,730,636'Environmentally acceptable well cement fluid loss control additives, compositions and methods'2004 6,644,405'Storable water-microsphere suspensions for use in well cements and methods'2003 6,631,766'Methods, well cement compositions and lightweight additives therefor'2003 6,626,992'Environmentally acceptable well cement fluid loss control additives, compositions, and methods'2003 6,610,140'Delayed thixotropic cement compositions and methods'2003 6,591,909'Whey protein retarder'2003 6,562,122'Lightweight well cement compositions and methods'2003 6,457,523'Delayed thixotropic cement compositions and methods'2002 6,405,801'Environmentally acceptable well cement fluid loss control additives, compositions and methods'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002–2007Patents assigned to HALLIBURTON ENERGY SERV INC (17)· patent assignee history

2002–2004Patents assigned to HERCULES INC (3)· patent assignee history

2002–2004Based in Lisse, NL· patent location history

2003–2007Based in Nieuw-Vennep, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HALLIBURTON ENERGY SERV INC	17	2002–2007
HERCULES INC	3	2002–2004

Locations

Location	Patents	Span
Nieuw-Vennep, NL	12	2003–2007
Lisse, NL	5	2002–2004