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AMERICAN HARD RUBBER CO

Overview
  • Total Patents
    108
About

AMERICAN HARD RUBBER CO has a total of 108 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, electrical machinery and energy and consumer goods are SMITH & NEPHEW PLASTICS, NEW YORK BELTING & PACKING COM and BRITZ JOHANNES H.

Patent filings in countries

World map showing AMERICAN HARD RUBBER COs patent filings in countries
# Country Total Patents
#1 United States 79
#2 Canada 14
#3 United Kingdom 9
#4 France 5
#5 Germany 1

Patent filings per year

Chart showing AMERICAN HARD RUBBER COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schelhammer Herman J 7
#2 King Harold D 6
#3 Herman Schelhammer 6
#4 Boyer Edwin S 5
#5 Roland Reppert 5
#6 Carson Oswald B 5
#7 Hilldring Carl F 5
#8 Lorenz Albert J 5
#9 Miller Loren J 4
#10 Cory George L 4

Latest patents

Publication Filing date Title
US2785911A Non-corrosive flexible hose coupling
GB729378A Improvements in or relating to an acid resistant moulded article
GB729325A Improvements in or relating to an acid resistant molded article
US2753312A Process of making acid-resistant molded articles containing organic fibers, resorcinol residue and asphalt
US2691187A Hinge construction for lid members for refrigerator chests
US2672656A Sliding door construction for refrigerated cabinets
US2753315A Acid resistant molded articles and process of making them
US2686142A Method of manufacturing corrugated microporous separators of hard rubber compositionmaterial
US2637876A Method of preventing the occurrence of pin holes in thin, microporous hard rubber separators
US2603672A Cover construction for storage battery cells
US2730561A Submarine battery jar support construction
GB634127A Improvements in or relating to method and apparatus for vulcanizing a strip of uncured rubber
US2572222A Doorframe
GB604829A Improvements in or relating to storage battery electrode pencil and method of makingsame
US2294462A Shoe cleat
US2358259A Method of producing molded plastic articles
US2321753A Cover for cooler cabinets
US2292445A Wear piece for furniture
US2344412A Closure for battery box covers
US2336754A Apparatus for preparing permeable hard rubber strips for vulcanization