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HOFF WALTER

Overview
  • Total Patents
    31
About

HOFF WALTER has a total of 31 patent applications. Its first patent ever was published in 1962. It filed its patents most often in Germany, EPO (European Patent Office) and Switzerland. Its main competitors in its focus markets civil engineering and machines are WILHELM LAYHER VERWALTUNGS-GMBH, JUNG OK SUN and STEIDLE GMBH & CO EMIL.

Patent filings in countries

World map showing HOFF WALTERs patent filings in countries
# Country Total Patents
#1 Germany 28
#2 EPO (European Patent Office) 2
#3 Switzerland 1

Patent filings per year

Chart showing HOFF WALTERs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hoff Walter 30

Latest patents

Publication Filing date Title
DE3911491A1 SYSTEM FOR USE IN THE CONSTRUCTION OF CONCRETE SHUTTERING
DE3910800A1 Device for forming wall lead-throughs in concrete construction work
CH666931A5 Lost shuttering securement for concrete reinforcement - has U=shaped member, whose web has elongated holes, transverse to shuttering longitudinal axis
DE3432346A1 INSERT BODY FOR CONCRETE SHUTTERING AND METHOD FOR THE PRODUCTION THEREOF
DE3212634A1 Holding device for posts of railings
DE3122874C1 Device for connecting reinforcing bars in the building industry
DE3005319A1 Fixing concreting formwork to existing structure - involves screwing pressure plate holder onto internally and externally threaded socket
DE3005309A1 Gap closing rail profile between form panels - has nuts on threaded bolts pressing holed fish-plates against panels
DE2853349A1 Concrete formwork bar inset water flow barrier - has side support, and lengthways hole sealable against inset bar
DE2843245A1 Universal formwork type screwed steel bar - has cylindrical base between helical elevations in cold rolled thread profiling
DE2819062A1 Concrete edge guard rail post holder - has socket on transverse beam clamped against support with bolt screwed in
DE2744665A1 Universal concrete construction threaded attachment assembly - has conical plastics socket and fixing element with threaded lengthways hole
DE2710224A1 Connector for positioning formwork for concrete - has end brackets with profile seat and connecting side parts
DE2710186A1 Formwork gap bridging and sealing clamp - has sealing head on concrete side and rib clamped with wedges
DE2710184A1 Spacing insert for concrete formwork - has spacing tube collar and flare preventing water seepage through concrete
DE2709658A1 Traverse connecting chord to lattice girders - involves cross piece with middle transverse attachment between girder struts, and end clamps
DE2709611A1 Clamp for concrete structure reinforcement - has two clamp pieces secured on side of rigid body with location by single screw
DE2552793A1 Concrete shuttering fixture component - using permanently retained anchor with holes for wires and screwed anchor bar
DE2552736A1 Attachment for concrete construction component - has internal threaded shaft and transverse holed unit on anchor
DE2343868A1 Fixture for guardrail on concrete structure - cup on holder for socket, with transverse shank-bearing lug