PORTER SCREEN COMPANY has a total of 12 patent applications. Its first patent ever was published in 1915. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, furniture and games and consumer goods are MARTELA AG, MARCADET MOBILIER and JUL HAEDRICH & CO.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Canada | 2 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Furniture and games | |
#3 | Consumer goods |
# | Technology | |
---|---|---|
#1 | Doors and windows | |
#2 | Office furniture | |
#3 | Locks | |
#4 | Laundering textiles |
# | Name | Total Patents |
---|---|---|
#1 | Maynard William H | 9 |
#2 | Mckenney Guy C | 2 |
#3 | Southworth Henry E | 1 |
#4 | Peters Oscar A | 1 |
Publication | Filing date | Title |
---|---|---|
US2121174A | Window screen | |
US2051997A | Window ventilator | |
US2066118A | Window ventilator | |
US2113310A | Extensible window screen | |
US2014974A | Window ventilator | |
US1989555A | Collapsible ironing table | |
US2015454A | Locking device | |
US1975857A | Table | |
US1961241A | Collapsible table | |
US1153140A | Window-screen. | |
CA357066A | Window ventilator | |
CA358406A | Locking device |