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HEWING GMBH

Overview
  • Total Patents
    123
About

HEWING GMBH has a total of 123 patent applications. Its first patent ever was published in 1987. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets mechanical elements, machines and machine tools are CRUSHPROOF TUBING COMPANY, TOYOX KK and PIPELIFE NEDERLAND BV.

Patent filings per year

Chart showing HEWING GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Riesselmann Franz-Josef 44
#2 Olbrich Kurt 13
#3 Dankbar Bernhard 10
#4 Homm Karl-Georg 10
#5 Braegelmann Peter 9
#6 Hoeffker Bruno 8
#7 Hansen Joerg 8
#8 Stoermann Michael 7
#9 Wittkaemper Michael 7
#10 Clausen Joerg 6

Latest patents

Publication Filing date Title
EP2604560A2 Rolling device for a tube ring assembly and tube ring assembly
DE10047758A1 Insert unit for an opening, in particular, in a pipe-shaped hollow component comprises a flexible sealing element which expands radially when subjected to an axial tightening force
DE10047757A1 Plastics pipe union factory fitted with clamp bush for prevention of loss prior to or during assembly has sliding bush with slightly larger internal diameter than outer diameter of pipe
DE10040643C1 Pipe-laying mat consists of wire mesh, containing recesses and protuberances, and ridged recess-bottoms
PL341329A1 Composite type made of plastic and metal composite
DE10033206C1 Pipe connector
DE10032725A1 Method for producing insulating plates with protrusions serving for holding pipes of a heating or cooling system consists of producing a molding and dividing it into two halves
DE10021988A1 Fitting for connecting a pipe made of plastic and / or a plastic / metal composite
CA2307400A1 A conduit, in particular for sanitary and heating installation purposes
EP1069361A1 Plastic tube of polyethylene
DE10013468C1 Plug coupling, for plastics pipe to carry fluids, has holding zone for inserted plug with structured interior to prevent plug moving axially out of position
DE19960046C1 Fitting for pipe with inner plastic layer and outer metal sleeve comprises first component fitted to stripped end of plastic tube which has sealing surface fitting against end of sleeve and second component slid towards first to widen pipe
DE19960045C1 Fitting for plastic-metal bonded tubes, with fitting body and clamping element
DE19957601A1 Pipe element with a connection surface for connecting to another pipe element
DE19931031C1 Closure and/or protection element for a pipe union of an object, in particular, a radiator is made of a plastic material with a shape memory and a crystallite melting point
DE19920410A1 Surface heating pipeline, in particular for underfloor heating, and surface heating construction with such a pipeline
DE19912922C1 System for producing area heating installations, in particular, floor heating installations comprises a foil laid on a heat insulating base, and at least one grid with pipe clamping elements joined to the foil
DE19854591C1 Screw connection for pipes
DE19841802A1 Fitting for connecting a pipe
DE19841801C1 Fitting for a pipe