Inventor

Keith A. Bair

Inventor

Horsham, PA, US

Overview

1987–2007

Patent span

Chemistry

Primary field (CPC C)

Patents· 19 as inventor

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

C02Fprimary

C02FTreatment of water, waste water, sewage, or sludge48%

C23FNon-mechanical removal of metallic material from surface26%

C04BLime, magnesia13%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds6%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

PatentTitleYear

7,271,214'Cement dispersant and methods of making and using the same'2007 6,869,998'Concrete or cement dispersant and method of use'2005 6,590,050'Polymeric fluid loss additives and method of use thereof'2003 6,465,587'Polymeric fluid loss additives and method of use thereof'2002 5,789,488'Preparation of water soluble graft copolymers'1998 5,575,920'Method of inhibiting scale and controlling corrosion in cooling water systems'1996 5,575,924'Water treatment methods'1996 5,527,468'Nonionic polymers for the treatment of boiler water'1996 5,445,758'Copolymers of ethylenically unsaturated and polyethylene-glycol monomethacrylate monomeric repeat units useful as scale control agents in boiler systems'1995 5,350,536'Copolymers of ethylenically unsaturated and polyethylene-glycol monomethacrylate monomeric repeat units useful as scale control agents in boiler systems'1994 5,271,847'Polymers for the treatment of boiler water'1993 5,242,599'Polymers for the treatment of boiler water'1993 5,183,576'Cationic polymers for sludge dewatering'1993 5,180,498'Polymers for the treatment of boiler water'1993 5,100,561'Cationic polymers for sludge dewatering'1992 4,886,617'Water soluble phosphonated polymers'1989 4,851,490'Water soluble phosphonated polymers'1989 4,708,815'Water treatment polymers and methods of use thereof'1987 4,659,480'Water treatment polymers and methods of use thereof'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1996Patents assigned to BETZ LABORATORIES (12)· patent assignee history

1987–1992Based in Hatboro, PA, US· patent location history

1993–1998Based in Horsham, PA, US· patent location history

1996–1998Patents assigned to BETZDEARBORN INC (3)· patent assignee history

2002–2003Patents assigned to HERCULES INC (2)· patent assignee history

2002–2003Based in Landenberg, PA, US· patent location history

2005–2007Patents assigned to GEO SPECIALTY CHEMICALS INC (2)· patent assignee history

2005–2007Based in Pennsburg, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BETZ LABORATORIES	12	1987–1996
BETZDEARBORN INC	3	1996–1998
GEO SPECIALTY CHEMICALS INC	2	2005–2007
HERCULES INC	2	2002–2003

Locations

Location	Patents	Span
Horsham, Pennsylvania, US	10	1993–1998
Hatboro, Pennsylvania, US	5	1987–1992
Pennsburg, Pennsylvania, US	2	2005–2007
Landenberg, Pennsylvania, US	2	2002–2003