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HARWIL CORPORATION
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SANTA MONICA, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Portable steam generating system
Patent number
6,647,204
Issue date
Nov 11, 2003
Harwil Corporation
Harold D. Hutchinson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Heat sealing apparatus for plastic bags
Patent number
6,450,088
Issue date
Sep 17, 2002
Harwil Corporation
Harold D. Hutchinson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Portable steam generating system
Patent number
6,393,212
Issue date
May 21, 2002
Harwil Corporation
Harold D. Hutchinson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Heat sealing apparatus for plastic bags
Patent number
6,119,590
Issue date
Sep 19, 2000
Harwil Corporation
Harold D. Hutchinson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Heat sealing apparatus for plastic bags
Patent number
5,947,019
Issue date
Sep 7, 1999
Harwil Corporation
Harold D. Hutchinson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Hall effect fluid flow switch and flow meter
Patent number
5,945,608
Issue date
Aug 31, 1999
Harwil Corporation
Harold D. Hutchinson
G01 - MEASURING TESTING
Information
Patent Grant
Fluid responsive switch pivot arm seal
Patent number
5,939,688
Issue date
Aug 17, 1999
Harwil Corporation
Harold D. Hutchinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photo detector bending beam flow switch and flow meter
Patent number
5,932,814
Issue date
Aug 3, 1999
Harwil Corporation
Harold D. Hutchinson
G01 - MEASURING TESTING
Information
Patent Grant
Heat sealing apparatus for plastic bags
Patent number
5,826,503
Issue date
Oct 27, 1998
Harwil Corporation
Harold D. Hutchinson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnet responsive variable differential switching apparatus
Patent number
5,159,305
Issue date
Oct 27, 1992
Harwil Corporation
Harold D. Hutchinson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Flow responsive switch apparatus
Patent number
5,021,619
Issue date
Jun 4, 1991
Harwil Corporation
Harold D. Hutchinson
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75544232 - HARWIL
Serial number
75544232
Registration number
2422569
Filing date
Aug 27, 1998
HARWIL CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73058238 - WHOZ UP
Serial number
73058238
Registration number
1041383
Filing date
Jul 21, 1975
HARWIL COMPANY
28 - Games and playthings
Information
Trademark
72228035 - HARWIL
Serial number
72228035
Registration number
825670
Filing date
Sep 17, 1965
HARWIL COMPANY
7 - Machines and machine tools