DURYEA O C CORP has a total of 67 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets transport, organic fine chemistry and textiles and paper are STANDARD COUPLER CO, TRANSOM DRAFT GEAR COMPANY and MINER CO W H.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 54 | |
#2 | Canada | 10 | |
#3 | France | 2 | |
#4 | Germany | 1 |
# | Industry | |
---|---|---|
#1 | Transport | |
#2 | Organic fine chemistry | |
#3 | Textiles and paper | |
#4 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Couplings | |
#2 | Rail vehicle suspensions | |
#3 | Railway bodies | |
#4 | Railway brakes | |
#5 | Chemical means for extinguishing fires | |
#6 | Heterocyclic compounds | |
#7 | Acyclic or carbocyclic compounds | |
#8 | Fiber treatments |
# | Name | Total Patents |
---|---|---|
#1 | Duryea Otho C | 47 |
#2 | Sigvard Simonson | 11 |
#3 | Simonson Sigvard | 4 |
#4 | Bierman William A | 2 |
#5 | Norbom Einar B | 1 |
#6 | Duryea Otho Cromwell | 1 |
Publication | Filing date | Title |
---|---|---|
US2497048A | Draft appliance for railway cars | |
US2349565A | Car construction | |
US2314954A | Car construction | |
US2307862A | Car construction | |
US2345652A | Car construction | |
US2284268A | Car construction | |
US2280146A | Car construction | |
US2271608A | Car construction | |
US2238163A | Car construction | |
US2271607A | Car construction | |
US2266963A | Car construction | |
US2161915A | Car construction | |
US2161914A | Car construction | |
US2129551A | Car construction | |
US2129550A | Car construction | |
US2129549A | Car construction | |
US2129548A | Car construction | |
US2132233A | Cast railway car body bolster | |
US2162997A | Railway car body bolster | |
US2129547A | Car construction |