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KELLER HANS

Overview
  • Total Patents
    100
About

KELLER HANS has a total of 100 patent applications. Its first patent ever was published in 1898. It filed its patents most often in Switzerland, Germany and United Kingdom. Its main competitors in its focus markets civil engineering, machines and mechanical elements are MANIBS SPEZIALARMATUREN, ROLLMAPLAST AG and ECOPIPE AB.

Patent filings per year

Chart showing KELLER HANSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keller Hans 51
#2 Hans Keller 23
#3 Walter Kuennecke 4
#4 Alfred Bosshardt 2
#5 Knappich Jacob 2
#6 Moser Robert 2
#7 Erich Plontke 2
#8 Keller H 1
#9 Hans Stuerchler 1
#10 Plontke Erich 1

Latest patents

Publication Filing date Title
CH710071B1 Odor trap for a sanitary water runoff.
CH706596A1 Odor trap for a sanitary water drain.
EP1172504A2 Car stop
IL139365D0 Stench trap for a urinal
DE3417221A1 Device for aligning the pattern of a planar structure with respect to a planar support
DE3417223A1 Process for producing a multiple-use copy for printed circuits, and appliance for implementing the process
CH651215A5 Runner sharpening apparatus for skates, method for its manufacture and its use
US4328689A Spring bolt combination lock
DE2636458A1 Round steel bar concrete reinforcement spacer - in double disc form with elastic tension rod connection
DE2608676A1 Unrolling method for concrete reinforcing mesh nodal point - has flat strip split and splayed and halves bent over
DE2606349A1 Unrollable steel mesh for solid reinforced concrete slab - with bars in elastically flexible troughs in steel or plastic strips
DE2430108A1 Reinforced-concrete girder round steel bar mesh - with paired lengthways rods welded above and below equidistant cross rods
CA967614A Delay action time lock
DE1916540A1 Process for the sterilization of liquid and gaseous media by means of ultraviolet radiation and equipment for carrying out this process
GB1147385A Pipe branch pieces and methods for making the same
GB1029095A Improvements in or relating to pipe branches
GB978106A Improvements in or relating to connection sleeves for the welding together of synthetic plastic tubes
GB1015237A Improvements in or relating to tubes made of thermoplastic material
GB703576A Improvements in and relating to pressure cookers
GB244394A Improvements in two-wire amplifiers