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GRONBACH WILHELM

Overview
  • Total Patents
    46
About

GRONBACH WILHELM has a total of 46 patent applications. Its first patent ever was published in 1962. It filed its patents most often in Germany, United Kingdom and France. Its main competitors in its focus markets civil engineering, machines and consumer goods are DORMA BAUBESCHLAG, LEADO DOOR CONTROLS LTD and CLARK HENRY B.

Patent filings in countries

World map showing GRONBACH WILHELMs patent filings in countries
# Country Total Patents
#1 Germany 20
#2 United Kingdom 7
#3 France 5
#4 Canada 4
#5 United States 4
#6 Italy 3
#7 Denmark 1
#8 Norway 1
#9 Sweden 1

Patent filings per year

Chart showing GRONBACH WILHELMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gronbach Wilhelm 24
#2 Gnann Alfons 7
#3 Gnan Alfons 1
#4 Gnann Alfrons 1
#5 Schwalb Heinz 1
#6 Gronbach W 1

Latest patents

Publication Filing date Title
GB8528216D0 A hinge with weight compensation means
DE3537924A1 Hinge with spring for compensating the weight of wings
DE3442267A1 Hinge with spring for compensating the weight of wings
DE3143786A1 Hinge for doors, flaps or the like
DE3124457A1 Closing device for doors, preferably refrigerator doors
DE2929526A1 Movable extensible flap on appliance - has cable round triple rollers with levers and bolts permitting free swing
DE2833879A1 Spring loaded door hinge - has pivoted lever with cylindrical bore, having grooves to accommodate guiding piston with ratchet to hold door in position
DE2733927A1 HINGE WITH COMPRESSION SPRING FOR WEIGHT BALANCING OF WINGS
US4015309A Hinge with compressions spring for counter-balancing weight of leaves
DE2550825A1 Hook connector for container parts - has single hook mountable on eccentric in either part and rotated by key
DE2524592A1 Telescopic spring shock absorber for washing machine - allowing piston to transmit uniform specific pressure and conduct heat away
DE2456094A1 Weight compensating door hinge - with compression spring between guide rod end and U-shaped movable hinge part
CA1013513A Hinge with compression spring for balancing the weight of covers
GB1435642A Hinge
GB1422808A Spring biased hinges
DE2308361A1 Hinge with load-equalising spring eg for lids - having spring guide rod with upper polyamide slide piece, and vertical thread on lower end
FR2030784A5 Pressure spring hinge to compensate door - weight
GB1292649A Hinge assembly
US3683454A Hinge assembly comprisin a compression spring for compensating the weight of wings
DE1957988A1 Plastic fan wheel for fume extraction-or - oil burner-fan