STONE & WEBSTER ENG CORP has a total of 721 patent applications. Its first patent ever was published in 1946. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets basic materials chemistry, chemical engineering and environmental technology are LUMMUS TECHNOLOGY INC, HYDROCARBON RESEARCH INC and LUMMUS CO.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 168 | |
#2 | Canada | 84 | |
#3 | United Kingdom | 48 | |
#4 | Japan | 39 | |
#5 | EPO (European Patent Office) | 37 | |
#6 | Spain | 31 | |
#7 | Australia | 30 | |
#8 | Germany | 29 | |
#9 | Brazil | 23 | |
#10 | France | 23 | |
#11 | Mexico | 20 | |
#12 | Norway | 19 | |
#13 | WIPO (World Intellectual Property Organization) | 19 | |
#14 | Netherlands | 16 | |
#15 | China | 14 | |
#16 | Finland | 14 | |
#17 | South Africa | 12 | |
#18 | India | 11 | |
#19 | Italy | 11 | |
#20 | Republic of Korea | 8 | |
#21 | Austria | 5 | |
#22 | Belgium | 5 | |
#23 | Switzerland | 5 | |
#24 | Greece | 5 | |
#25 | Israel | 5 | |
#26 | Portugal | 5 | |
#27 | Argentina | 4 | |
#28 | Indonesia | 4 | |
#29 | Sweden | 4 | |
#30 | Taiwan | 4 | |
#31 | Yugoslavia (Serbia and Montenegro) | 4 | |
#32 | Denmark | 3 | |
#33 | Ireland | 3 | |
#34 | Morocco | 2 | |
#35 | New Zealand | 2 | |
#36 | Singapore | 2 | |
#37 | Malaysia | 1 | |
#38 | Philippines | 1 | |
#39 | USSR (Union of Socialist Soviet Republics) | 1 |
# | Industry | |
---|---|---|
#1 | Basic materials chemistry | |
#2 | Chemical engineering | |
#3 | Environmental technology | |
#4 | Organic fine chemistry | |
#5 | Thermal processes | |
#6 | Machines | |
#7 | Engines, pumps and turbines | |
#8 | Materials and metallurgy |
# | Name | Total Patents |
---|---|---|
#1 | Woebcke Herman N | 85 |
#2 | Johnson Axel R | 77 |
#3 | Gartside Robert J | 69 |
#4 | Norton Richard C | 34 |
#5 | Ross Joseph L | 29 |
#6 | Narayanan Swami | 26 |
#7 | Duncan Dennis A | 21 |
#8 | Barchas Richard | 19 |
#9 | Woebcke Herman Nicholas | 19 |
#10 | Garabedian George | 18 |
Publication | Filing date | Title |
---|---|---|
MXPA02007325A | Multi zone cracking furnace. | |
US6271433B1 | Cat cracker gas plant process for increased olefins recovery | |
CA2321300A1 | Spent caustic pretreatment and enhanced oxidation process | |
US6235961B1 | Process for pretreating cracked gas before caustic tower treatment in ehtylene plants | |
CA2289852A1 | Cracking furnace with radiant heating tubes | |
US6383455B1 | Ceramic slot reactor for ethylene production | |
US6312652B1 | Ceramic dip pipe and tube reactor for ethylene production | |
US5768913A | Process based mixed refrigerants for ethylene plants | |
US5885422A | Spent caustic (pre)treatment process | |
US5859304A | Chemical absorption process for recovering olefins from cracked gases | |
US5981818A | Integrated cracking and olefins derivative process utilizing dilute olefins | |
US5763715A | Butadiene removal system for ethylene plants with front end hydrogenation systems | |
US5976355A | Low residence time catalytic cracking process | |
US6267359B1 | Advanced tray support system using orthogonal grillage | |
US5723040A | Fluid catalytic cracking process and apparatus | |
US5662868A | Short residence time cracking apparatus and process | |
CA2111018A1 | Integrated mtbe process | |
US5427655A | High capacity rapid quench boiler | |
US5523502A | Flexible light olefins production | |
AU4871593A | Pulsed air decoking |