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Detroit, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of heat treating metal using a washable synthetic quenchant
Patent number
RE34119
Issue date
Nov 3, 1992
Park Chemical Company
Robert W. Foreman
148 - Metal treatment
Information
Patent Grant
Pressure molding process using salt cores and composition for makin...
Patent number
4,904,423
Issue date
Feb 27, 1990
Park Chemical Company
Robert W. Foreman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of heat treating metal using a washable synthetic quenchant
Patent number
4,738,731
Issue date
Apr 19, 1988
Park Chemical Company
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Mold release agents and means of application
Patent number
4,491,607
Issue date
Jan 1, 1985
Park Chemical Company
Robert J. Wesala
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for treating barium toxic water using low-temperature stabil...
Patent number
4,491,523
Issue date
Jan 1, 1985
Park Chemical Company
Robert W. Foreman
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Mold release agents for open-cell molded foamed articles and means...
Patent number
4,473,403
Issue date
Sep 25, 1984
Park Chemical Company
Robert J. Wesala
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Recovery and recycle of nitrate and nitrite salts from chloride con...
Patent number
4,396,439
Issue date
Aug 2, 1983
Park Chemical Company
Robert W. Foreman
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Method for restoring molecular weight distribution of a polymeric q...
Patent number
4,251,292
Issue date
Feb 17, 1981
Park Chemical Company
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for recycling heat treating salts
Patent number
4,158,579
Issue date
Jun 19, 1979
Park Chemical Company
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Cyanide-free carburizing process and composition
Patent number
4,153,481
Issue date
May 8, 1979
Park Chemical Company
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for recycling heat treating salts
Patent number
4,149,702
Issue date
Apr 17, 1979
Park Chemical Company
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Pelletized rectifier for molten neutral salt baths and method
Patent number
4,009,112
Issue date
Feb 22, 1977
Park Chemical Co.
Robert W. Foreman
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of stripping paint in a molten salt bath
Patent number
4,001,038
Issue date
Jan 4, 1977
Park Chemical Co.
Timothy R. Justice
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73624913 - THE RIGHT CHEMISTRY
Serial number
73624913
Registration number
1443584
Filing date
Oct 10, 1986
Park Chemical Company
40 - Treatment of materials
Information
Trademark
73613606 - HYDROQUENCH
Serial number
73613606
Registration number
1510554
Filing date
Aug 7, 1986
Park Chemical Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73219875 - NO-CY
Serial number
73219875
Registration number
1191937
Filing date
Jun 15, 1979
Park Chemical Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73094054
Serial number
73094054
Registration number
1100460
Filing date
Jul 21, 1976
PARK CHEMICAL COMPANY
2 - Paints, varnishes, lacquers
Information
Trademark
73037137 - KEMQUENCH
Serial number
73037137
Registration number
1020860
Filing date
Nov 14, 1974
PARK CHEMICAL COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73037138 - PARQUENCH
Serial number
73037138
Registration number
1020861
Filing date
Nov 14, 1974
PARK CHEMICAL COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72281916 - 584-G KITTEN WAX
Serial number
72281916
Registration number
864719
Filing date
Oct 5, 1967
PARK CHEMICAL COMPANY
3 - Bleaching preparations and other substances for laundry use
Information
Trademark
71531511 - NEUTRA-GAS
Serial number
71531511
Registration number
532647
Filing date
Aug 15, 1947
PARK CHEMICAL COMPANY
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
71513227 - PARKO
Serial number
71513227
Registration number
444253
Filing date
Nov 18, 1946
PARK CHEMICAL COMPANY
2 - Paints, varnishes, lacquers
Information
Trademark
71496653 - PARKO
Serial number
71496653
Registration number
433883
Filing date
Feb 15, 1946
PARK CHEMICAL COMPANY
3 - Bleaching preparations and other substances for laundry use
Information
Trademark
71496654 - PARKO
Serial number
71496654
Registration number
440766
Filing date
Feb 15, 1946
PARK CHEMICAL COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry