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WALTER LENNARTZ

Overview
  • Total Patents
    64
About

WALTER LENNARTZ has a total of 64 patent applications. Its first patent ever was published in 1939. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets consumer goods, machines and packaging and shipping are SIPLAST SIEGERLAENDER PLASTIK, LIHIT LAB INC and LENNARTZ WALTER.

Patent filings in countries

World map showing WALTER LENNARTZs patent filings in countries
# Country Total Patents
#1 Germany 33
#2 United Kingdom 21
#3 United States 9
#4 Spain 1

Patent filings per year

Chart showing WALTER LENNARTZs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lennartz Walter 38
#2 Walter Lennartz 5

Latest patents

Publication Filing date Title
US3613281A Plastic file folders
US3460159A File folder having a plurality of pockets
GB1139478A Improvements in suspension document files
GB1146237A Improvements in suspension document filing folders
GB1138910A A closure device for a stationery file
GB1123508A Improvements in storage bags of synthetic plastics material
GB1133693A A document file made of sheet plastics material
GB1117138A An improved document file
GB1148770A An improved document file
DE1241799B Base sheet with a line-up rail, e.g. B. for loose-leaf binders
DE1236473B Plastic folder
GB1020465A Improvements in document files
DE1207340B Letter folder
DE1239273B Plastic folder
GB980966A Improvements in document files
GB974685A Improvements in or relating to document covers
DE1212291B Device for the production of letter folders, folders of all kinds, ring binders, etc. from plastic film webs
DE1225603B Foil web of plastic for manufacturing documents containers
DE1194366B Document holder on slip sheets of signature folders
DE1160405B Register for folders, loose-leaf binders, etc.