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East Norwalk, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Alternate polymer extrusion method with reduced drool
Patent number
7,648,658
Issue date
Jan 19, 2010
Harrel, Inc.
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastics extruder dimension and viscosity control system
Patent number
7,018,191
Issue date
Mar 28, 2006
Harrel Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Operatorless extrusion system
Patent number
6,652,785
Issue date
Nov 25, 2003
Harrel, Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Extrusion of an article of varying content
Patent number
5,725,814
Issue date
Mar 10, 1998
Harrel, Inc.
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for extrusion of an article of varying content
Patent number
5,695,789
Issue date
Dec 9, 1997
Harrel, Inc.
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Sheet thickness gauging method and system with auto calibration
Patent number
4,954,719
Issue date
Sep 4, 1990
Harrel, Inc.
Holton E. Harris
G01 - MEASURING TESTING
Information
Patent Grant
Nuclear gauge traverse
Patent number
4,734,922
Issue date
Mar 29, 1988
Harrel, Inc.
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Extruder viscosity control system and method
Patent number
4,721,589
Issue date
Jan 26, 1988
Harrel, Inc.
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Extruded plastic foam density control system and method
Patent number
4,613,471
Issue date
Sep 23, 1986
Harrel, Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Three-mode process control
Patent number
4,430,698
Issue date
Feb 7, 1984
Harrel, Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
System and method of temperature control for plastics extruder
Patent number
4,272,466
Issue date
Jun 9, 1981
Harrel, Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for fabrication of extruded articles
Patent number
4,209,476
Issue date
Jun 24, 1980
Harrel, Incorporated
Holton E. Harris
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
77627086 - GEARTRUDER
Serial number
77627086
Filing date
Dec 5, 2008
Harrel, Incorporated
7 - Machines and machine tools
Information
Trademark
76608030 - ALTERNATE POLYMER
Serial number
76608030
Registration number
3102679
Filing date
Aug 18, 2004
Harrel, Incorporated
7 - Machines and machine tools
Information
Trademark
73686552 - WEIGHTRUDER
Serial number
73686552
Registration number
1504603
Filing date
Sep 28, 1987
Harrel, Incorporated
7 - Machines and machine tools
Information
Trademark
73678023 - DIGITACH
Serial number
73678023
Registration number
1519419
Filing date
Aug 10, 1987
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73678025 - PIPE-TROL
Serial number
73678025
Registration number
1520609
Filing date
Aug 10, 1987
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73678024 - GEARTRUDER
Serial number
73678024
Registration number
1488149
Filing date
Aug 10, 1987
Harrel, Incorporated
7 - Machines and machine tools
Information
Trademark
73678031 - SHEET-TROL
Serial number
73678031
Registration number
1512420
Filing date
Aug 10, 1987
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73465349 - TEL-CHECK
Serial number
73465349
Registration number
1496569
Filing date
Feb 13, 1984
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73444975 - DIGI-SYNCH
Serial number
73444975
Registration number
1298601
Filing date
Sep 23, 1983
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73444976 - TUBE-TROL
Serial number
73444976
Registration number
1298602
Filing date
Sep 23, 1983
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73443468 - DUO-SENSE
Serial number
73443468
Registration number
1300318
Filing date
Sep 12, 1983
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73443465 - AUTO-TRIM
Serial number
73443465
Registration number
1337423
Filing date
Sep 12, 1983
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73212526 - DIGICARD
Serial number
73212526
Registration number
1140266
Filing date
Apr 23, 1979
Harrel, Incorporated
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73166666 - DIGIPANEL
Serial number
73166666
Registration number
1137592
Filing date
Apr 17, 1978
HARREL, INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72412635 - MOLAN
Serial number
72412635
Registration number
966516
Filing date
Jan 14, 1972
HARREL, INCORPORATED
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72319759 - HARREL
Serial number
72319759
Registration number
892872
Filing date
Feb 24, 1969
HARREL, INCORPORATED
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments