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Bad Kissingen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for cutting slots in corrugated and twin-wall pipes
Patent number
5,953,974
Issue date
Sep 21, 1999
Hegler; Wilhelm
Ralph-Peter Hegler
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Apparatus for the manufacture of corrugated pipes of thermoplastic...
Patent number
5,560,941
Issue date
Oct 1, 1996
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for continuously manufacturing compound corrugated pipe havi...
Patent number
5,472,659
Issue date
Dec 5, 1995
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the manufacture of a plastic pipe having transverse p...
Patent number
5,393,211
Issue date
Feb 28, 1995
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the production of plastic pipes
Patent number
5,346,384
Issue date
Sep 13, 1994
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for welding together pipes consisting of thermoplastic plastics
Patent number
5,320,697
Issue date
Jun 14, 1994
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for the continuous manufacture of a compound p...
Patent number
5,320,797
Issue date
Jun 14, 1994
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the production of plastic pipes
Patent number
5,141,427
Issue date
Aug 25, 1992
Hegler; Wilhelm
Ralph-Peter Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic pipe for sewer pipe reconstruction
Patent number
5,071,173
Issue date
Dec 10, 1991
Hegler; Wilhelm
Wilhelm Hegler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Partial-seepage drainage pipe with mating sleeve
Patent number
4,930,936
Issue date
Jun 5, 1990
Hegler; Wilhelm
Wilhelm Hegler
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Method and apparatus for producing a finned tube from synthetic pla...
Patent number
4,900,503
Issue date
Feb 13, 1990
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic corrugated tube with integrally molded sleeve coupler
Patent number
4,779,651
Issue date
Oct 25, 1988
Hegler; Wilhelm
Wilhelm Hegler
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Corrugated sheathing hose
Patent number
4,513,787
Issue date
Apr 30, 1985
Hegler; Wilhelm
Wilhelm Hegler
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus for the production of plastic pipes with transverse grooves
Patent number
4,492,551
Issue date
Jan 8, 1985
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for cutting openings in pipes
Patent number
4,488,467
Issue date
Dec 18, 1984
Hegler; Wilhelm
Wilhelm Hegler
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Process and apparatus for the fabrication of a flat-shaped hollow body
Patent number
4,381,276
Issue date
Apr 26, 1983
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Double-wall plastic tubing in which the outer wall has transverse c...
Patent number
4,303,104
Issue date
Dec 1, 1981
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the manufacture of transversely contoured tubing from...
Patent number
4,212,618
Issue date
Jul 15, 1980
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for cutting openings at arbitrarily selectable intervals...
Patent number
4,158,534
Issue date
Jun 19, 1979
Hegler; Wilhelm
Wilhelm Hegler
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Method of manufacturing double-wall plastic tubing in which the out...
Patent number
4,145,387
Issue date
Mar 20, 1979
Hegler; Wilhelm
Wilhelm Hegler
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
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