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SPERBER ALFRED

Overview
  • Total Patents
    20
About

SPERBER ALFRED has a total of 20 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets civil engineering, agriculture and machines are NECCHI SRL, RIELDA SRL and CYLOCK PTY LTD.

Patent filings in countries

World map showing SPERBER ALFREDs patent filings in countries
# Country Total Patents
#1 Germany 17
#2 EPO (European Patent Office) 2
#3 United States 1

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Sperber Alfred 20

Latest patents

Publication Filing date Title
DE4106476A1 Cylinder lock with locking elements formed by sliding bars - has transverse slots which are aligned to release lock when operated by correct key
DE3803358A1 Locking device with a blockable locking shaft
EP0280747A1 Locking device
DE3606570A1 Locking device
DE3534448A1 Locking device
DE3436330C1 Apparatus for catching animals
DE3228918A1 Permutation cylinder lock with flat key
DE2905787A1 Separate stables for cattle - involves two anchored posts with guide struts as separating elements
DE2711598A1 Cattle tether with Y=shaped chain - has U=shaped strap formed of pivoted sections to enclose cow's neck
DE2612221A1 Combination lock with several locking discs - has ratchet teeth and optionally set stops engaging with indexing shaft
DE2600739B1 Automatically -set animal -trap - has horizontal trap-surface fixed to vertical tilting side held by locking-lever
DE2555992A1 Hanger for textiles with two spaced arms - with roller clamp with two central side pins
DE2520332A1 Safety hook between chains - has spring-loaded lever on twin support arms
DE2520330A1 Food product emptying press - has tube squeezed between rollers with base held in groove of roller having drive lever
DE2520313A1 Seal for toothpaste tubes - has plastic valve in end of tube twisted through 90 degrees
DE2501554A1 Combination lock with manually adjustable discs - has ratchet wheels with locking pin holes and releasing hole for securing vehicle door or steering column