Learn more

HEDWIN CORP

Overview
  • Total Patents
    90
About

HEDWIN CORP has a total of 90 patent applications. Its first patent ever was published in 1951. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets machines, packaging and shipping and medical technology are GRUBERNES SPRAENGSTOFFABRIKER, CIE IND DES TEXTILES ET EMBALL and KING PACKAGING LTD.

Patent filings in countries

World map showing HEDWIN CORPs patent filings in countries

Patent filings per year

Chart showing HEDWIN CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Winstead Thomas W 26
#2 Speas Charles A 12
#3 Winstead Thomas Williamson 9
#4 Williamson Winstead Thomas 4
#5 Winstead T 3
#6 Thomas Williamson Winstead 2
#7 Lippens Andre M 2
#8 Jordan Charles T 2
#9 Hoeffelman Johan 1
#10 Winstead T W 1

Latest patents

Publication Filing date Title
US4209104A Drum assemblies with preformed inserts
US4264016A Plastic drums and drum assemblies with preformed inserts
US4207284A Method of making plastic drum assemblies with preformed inserts
US3599840A Device for positioning film bag liners in outer containers
US3433867A Method of forming mold for dualchambered container partition
ES321003A1 Blowing device for extrusion appliance. (Machine-translation by Google Translate, not legally binding)
US3424343A Receptacles and method of making the same
US3318505A Plastic container with integral dispensing tube
US3351225A Partition for dual chambered container and method of forming mold therefor
US3317956A Mixing device for extruding apparatus
US3234594A Apparatus for forming plastic containers
US3276657A Drum end closures
GB963793A Closure fitting
US3235638A Method for forming plastic containers
US3082927A Lined container
US3035737A Liquid container dispensing rack
US3042271A Container with retractable projectable spout
GB906598A Thermoplastic container
GB863024A A collapsible container
GB872065A A composite container package