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HARTKORN ALFRED

Overview
  • Total Patents
    51
About

HARTKORN ALFRED has a total of 51 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Germany, Canada and United States. Its main competitors in its focus markets civil engineering are WON DAE YON, ZHEJIANG QINSHAN RUBBER ENG JOINT STOCK COMPANY and LEE GYEONG PYO.

Patent filings in countries

World map showing HARTKORN ALFREDs patent filings in countries

Patent filings per year

Chart showing HARTKORN ALFREDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Top inventors

# Name Total Patents
#1 Hartkorn Alfred 38
#2 Alfred Hartkorn 2
#3 Hartkorn A 1

Latest patents

Publication Filing date Title
JP2000303572A Joint bridging structure
DE19841463A1 Roadbridge end joint crossover has its edge supports held at edges with L-section holders anchored to joint edges for axial location.
DE19803004A1 Joint-bridging structure in bridge
DE19637915A1 One-button profile arrangement for a joint bridging construction
DE4433909A1 Joint bridging device
DE4421467C1 Device to reduce noise generation from road joints
DE4303268A1 Control for a joint bridging construction for buildings, in particular bridges
DE4238814A1 Waterproof joint bridging construction for bridges or similar structures
DE4138347A1 Waterproof joint bridging construction for bridges or similar structures
DE4035235A1 Joint bridging construction for bridges or similar structures
DE3803322A1 Joint-bridging construction for bridges or similar structures
DE3626367A1 Joint-bridging construction for bridges or similar structures
DE3622253A1 JOINT BRIDGE CONSTRUCTION FOR CONSTRUCTIONS
DE3430404A1 Fastening device for an object which can be buttoned in at its edge
DE3416080A1 JOINT BRIDGING CONSTRUCTION FOR BRIDGES OR THE LIKE CONSTRUCTION
DE3407075A1 Joint-bridging construction for spaced-apart structures or components
DE3116429A1 "JOINT TRANSITION CONSTRUCTION FOR BRIDGES AND THE LIKE CONSTRUCTIONS"
DE3116022A1 Blockout body for column-type elements to be embedded in structures
DE3104205A1 "JOINT BRIDGE CONSTRUCTION FOR BRIDGES OR THE LIKE CONSTRUCTIONS"
DE2834361B1 Joint bridging construction for bridges or the like. Buildings