Robert P. Kreh

Person

Jessup, MD, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for inhibiting corrosion of metals using polytartaric acids
- Patent number 5,344,590
- Issue date Sep 6, 1994
- W. R. Grace & Co.-Conn.
- Charles G. Carter
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Dispersion of iron (III) oxides using certain dihydroxaromatic comp...
- Patent number 5,223,146
- Issue date Jun 29, 1993
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Multipurpose scale preventer/remover
- Patent number 5,183,573
- Issue date Feb 2, 1993
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of dispersing iron
- Patent number 5,183,574
- Issue date Feb 2, 1993
- W. R. Grace & Co.-Conn.
- Chih M. Hwa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Corrosion inhibitors
- Patent number 5,183,590
- Issue date Feb 2, 1993
- W. R. Grace & Co.-Conn.
- Charles G. Carter
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Corrosion inhibition in chelant solutions
- Patent number 5,171,477
- Issue date Dec 15, 1992
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Naphthylamine polycarboxylic acids
- Patent number 5,139,702
- Issue date Aug 18, 1992
- W. R. Grace & Co.-Conn.
- Charles G. Carter
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Corrosion inhibition with water-soluble rare earth chelates
- Patent number 5,130,052
- Issue date Jul 14, 1992
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Novel cement additives and hydraulic cement mixes containing them
- Patent number 5,102,467
- Issue date Apr 7, 1992
- W. R. Grace & Co.-Conn.
- Ellis M. Gartner
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of inhibiting corrosion and scale formation in aqueous systems
- Patent number 5,073,339
- Issue date Dec 17, 1991
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Mono- and di-substituted (diphosphonoalkylamino methyl)-4-hydroxybe...
- Patent number 5,043,099
- Issue date Aug 27, 1991
- Robert P. Kreh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Corrosion control
- Patent number 5,022,926
- Issue date Jun 11, 1991
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Corrosion inhibition
- Patent number 4,935,205
- Issue date Jun 19, 1990
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Ceric oxidant
- Patent number 4,794,172
- Issue date Dec 27, 1988
- W. R. Grace & Co.-Conn.
- Robert P. Kreh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxidation of organic compounds using a catalyzed cerium (IV) compos...
- Patent number 4,701,245
- Issue date Oct 20, 1987
- W. R. Grace & Co.
- Robert P. Kreh
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Oxidation of organic compounds using thallium ions
- Patent number 4,692,227
- Issue date Sep 8, 1987
- W. R. Grace & Co.
- Robert M. Spotnitz
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Oxidation of organic compounds using ceric methanesulfonate in an a...
- Patent number 4,670,108
- Issue date Jun 2, 1987
- W. R. Grace & Co.
- Robert P. Kreh
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Oxidation of organic compounds using ceric ions in aqueous trifluor...
- Patent number 4,647,349
- Issue date Mar 3, 1987
- W. R. Grace & Co.
- Robert P. Kreh
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Oxidation of organic compounds using ceric ions in aqueous methanes...
- Patent number 4,639,298
- Issue date Jan 27, 1987
- W. R. Grace & Co.
- Robert P. Kreh
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Robert P. Kreh

Person

Patents Grantslast 30 patents

Method for inhibiting corrosion of metals using polytartaric acids

Dispersion of iron (III) oxides using certain dihydroxaromatic comp...

Multipurpose scale preventer/remover

Method of dispersing iron

Corrosion inhibitors

Corrosion inhibition in chelant solutions

Naphthylamine polycarboxylic acids

Corrosion inhibition with water-soluble rare earth chelates

Novel cement additives and hydraulic cement mixes containing them

Method of inhibiting corrosion and scale formation in aqueous systems

Mono- and di-substituted (diphosphonoalkylamino methyl)-4-hydroxybe...

Corrosion control

Corrosion inhibition

Ceric oxidant

Oxidation of organic compounds using a catalyzed cerium (IV) compos...

Oxidation of organic compounds using thallium ions

Oxidation of organic compounds using ceric methanesulfonate in an a...

Oxidation of organic compounds using ceric ions in aqueous trifluor...

Oxidation of organic compounds using ceric ions in aqueous methanes...