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KELLER VOLPER E

Overview
  • Total Patents
    45
About

KELLER VOLPER E has a total of 45 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Switzerland, France and Germany. Its main competitors in its focus markets civil engineering, machines and organic fine chemistry are RICOUARD L A S SA, MOBILE MINI INC and EXCELSIOR HARDWARE COMPANY.

Patent filings in countries

World map showing KELLER VOLPER Es patent filings in countries

Patent filings per year

Chart showing KELLER VOLPER Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keller-Volper Ernst 7
#2 Ernst Keller-Volper 4
#3 Keller Volper E 3
#4 Keller-Volper E 2

Latest patents

Publication Filing date Title
DE2559214A1 Key operated espagnolette lock - has two part eccentric disc linked by slot and peg to allow key withdrawal at any position (OE 15.9.76)
GB1473025A Double cylinder for a lock
CH583841A5 Fastening system for rotary locking bolt hook - has grooved end held in brackets with snap fit on frame
CH583361A5 Rack and pinion actuated lock with nut - has nut for handle and key rotated through full circle
DE2435833A1 ESPAGNOLETTE LOCK
GB1429383A Espagnolette fastening
US3735614A Cylinder lock
GB1357019A Cylinder lock for actuation by a push-in key
NL167003B Double recessed cylinder lock.