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Patents Grants
last 30 patents
Information
Patent Grant
Process for producing ion exchange membranes, and the ion exchange...
Patent number
5,643,968
Issue date
Jul 1, 1997
The Graver Company
Christopher Andreola
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Arylenedialkylidene polymers for high performance ion exchange memb...
Patent number
5,624,965
Issue date
Apr 29, 1997
The Graver Company
Jian-ping Huang
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Automatic feedback control system for a water treatment apparatus
Patent number
5,601,704
Issue date
Feb 11, 1997
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ion exchange resin having dual morphology
Patent number
5,403,492
Issue date
Apr 4, 1995
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Ion exchange resin having dual morphology
Patent number
5,397,477
Issue date
Mar 14, 1995
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Filter and a method for separating charged particles from a liquid...
Patent number
5,376,278
Issue date
Dec 27, 1994
The Graver Company
Eli Salem
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for treatment of aqueous solutions
Patent number
5,346,624
Issue date
Sep 13, 1994
The Graver Company
Bruce L. Libutti
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Bipolar membrane stack and method for producing acid and monovalent...
Patent number
5,250,159
Issue date
Oct 5, 1993
The Graver Company
Donald J. Butterworth
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Regeneration of deep bed condensate polishers
Patent number
5,212,205
Issue date
May 18, 1993
The Graver Company
Michael J. O'Brien
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Baffle assembly for air and water backwash of a media filter
Patent number
5,207,905
Issue date
May 4, 1993
The Graver Company
Michael J. O'Brien
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Bipolar membrane stack and method for production of low chloride so...
Patent number
5,207,879
Issue date
May 4, 1993
The Graver Company
Donald J. Butterworth
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
External regeneration system for mixed bed ion exchangers
Patent number
5,196,122
Issue date
Mar 23, 1993
The Graver Company
Michael J. O'Brien
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Cation exchange resins having an enhanced capacity for iron oxides
Patent number
5,192,446
Issue date
Mar 9, 1993
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Condensate polishing system incorporating a membrane filter
Patent number
5,126,052
Issue date
Jun 30, 1992
The Graver Company
Marvin Lane
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Backwash method and apparatus
Patent number
5,114,596
Issue date
May 19, 1992
The Graver Company
Terrance Laterra
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Recovery of sodium hydroxide and aluminum hydroxide from etching waste
Patent number
5,049,233
Issue date
Sep 17, 1991
The Graver Company
Thomas A. Davis
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Low profile underdrain strainer assembly with improved distribution...
Patent number
5,028,322
Issue date
Jul 2, 1991
The Graver Company
Alfonse J. Soriente
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for treating aqueous solutions
Patent number
5,022,997
Issue date
Jun 11, 1991
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Backwash method and apparatus
Patent number
5,017,241
Issue date
May 21, 1991
The Graver Company
Leo Ryan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Lamella gravity separator
Patent number
4,889,624
Issue date
Dec 26, 1989
The Graver Company
Alfonse J. Soriente
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for generating acid and base regenerants and t...
Patent number
4,880,513
Issue date
Nov 14, 1989
The Graver Company
Thomas A. Davis
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Deaerator unit
Patent number
4,863,498
Issue date
Sep 5, 1989
The Graver Company
Alfonse J. Soriente
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Purification of liquids with treated polyester fibers
Patent number
4,747,955
Issue date
May 31, 1988
The Graver Company
Robert Kunin
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Air/water distributor underdrain
Patent number
4,707,257
Issue date
Nov 17, 1987
The Graver Company
Thomas A. Davis
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus to convert a long tube vertical evaporator to...
Patent number
4,683,025
Issue date
Jul 28, 1987
The Graver Company
A. Roland Flores
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Regeneration of mixed bed demineralizers
Patent number
4,663,051
Issue date
May 5, 1987
The Graver Company
George C. Flynn
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Hot process liquid treatment method and apparatus
Patent number
4,663,054
Issue date
May 5, 1987
The Graver Company
Robert T. O'Connell
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Deoxygenation and purification of liquids
Patent number
4,629,571
Issue date
Dec 16, 1986
The Graver Company
Eli Salem
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Method and apparatus for withdrawing a layer of material from a vessel
Patent number
4,622,141
Issue date
Nov 11, 1986
The Graver Company
Eli Salem
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus to convert top tube sheet filter to bottom tub...
Patent number
4,609,462
Issue date
Sep 2, 1986
The Graver Company
George C. Flynn
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74709724 - SEPRAEIGHT
Serial number
74709724
Registration number
2046602
Filing date
Aug 1, 1995
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74604845 - AQUALYTICS
Serial number
74604845
Registration number
2239073
Filing date
Nov 30, 1994
GRAVER COMPANY, THE
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74534593 - BEDTRAK
Serial number
74534593
Filing date
Jun 7, 1994
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74534374 - POXIFIL
Serial number
74534374
Registration number
1973362
Filing date
Jun 7, 1994
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74358329 - GRAVER WATERWORKS
Serial number
74358329
Registration number
1814205
Filing date
Feb 12, 1993
GRAVER COMPANY, THE
42 - Scientific and technological services and research and design relating thereto
Information
Trademark
74267297 - AFA
Serial number
74267297
Registration number
1748349
Filing date
Apr 20, 1992
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74189462 - WATERAID
Serial number
74189462
Registration number
1716500
Filing date
Jul 29, 1991
GRAVER COMPANY, THE
37 - Building construction
Information
Trademark
74169259 - AWS
Serial number
74169259
Registration number
1775822
Filing date
May 23, 1991
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74102722 - GREGRY
Serial number
74102722
Filing date
Oct 3, 1990
GRAVER COMPANY, THE
40 - Treatment of materials
Information
Trademark
74077827 - AEGIS
Serial number
74077827
Registration number
1676349
Filing date
Jul 9, 1990
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74060447 - TRI-SEP
Serial number
74060447
Registration number
1657297
Filing date
May 18, 1990
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
74058960 - ECOSORB
Serial number
74058960
Registration number
1710954
Filing date
May 14, 1990
GRAVER COMPANY, THE
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73781961 - TRAYPAK
Serial number
73781961
Registration number
1570784
Filing date
Feb 21, 1989
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73649898 - REACTA-RAKE
Serial number
73649898
Registration number
1459141
Filing date
Mar 17, 1987
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73649899 - MONO-SCRUB
Serial number
73649899
Registration number
1459142
Filing date
Mar 17, 1987
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73510389 - ROSEP
Serial number
73510389
Registration number
1345960
Filing date
Nov 26, 1984
GRAVER COMPANY, THE
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes