Snam S.p.A.
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 30, 1996 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 310 Total Citation Count
- May 01, 1981 Earliest Filing
- 18 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5453172 Solid-state sensor for determining the concentration of a gas with a solid-state reference electrodeExpiredMay 05, 92Sep 26, 95[G01N]
5447054 Gas sensors formed of thin tin oxide films, for gaseous hydro-carbon determinationExpiredSep 28, 94Sep 05, 95[G01N]
5445848 Tape for reinforcing pressure-supporting hollow bodies and a method for repairing deteriorated pipesExpiredApr 15, 94Aug 29, 95[B41N, B05C]
5400643 Gas sensor based on semiconductor oxide, for gaseous hydrocarbon determinationExpiredDec 17, 93Mar 28, 95[G01N]
5348801 Tape for reinforcing pressure-supporting hollow bodies and a method for repairing deteriorated pipesExpiredMay 18, 93Sep 20, 94[B65H, B32B]
5345972 Method for repairing local damage to pipelines by applying cladding with an interposed protective sheathExpiredMar 16, 93Sep 13, 94[F16F]
5171794 Modified poly(2,6-dimethyl-p-oxyphenylene), a process for its preparation and its use in gas mixture separation membranesExpiredJul 10, 90Dec 15, 92[C08G]
5169416 Process for preparing modified poly-(2,6-dimethyl-p-oxyphenylene)ExpiredDec 06, 90Dec 08, 92[B01D]
5133857 Solid-state sensor for the determination of concentration of gases which can react with hydrogenExpiredOct 16, 91Jul 28, 92[G01N]
4648626 Telescopic joint for repairing underwater pipelines laid at a great depthExpiredJul 31, 85Mar 10, 87[F16L]
4593448 Method for tightly jointing a sleeve to a submarine pipe laid at great depthExpiredMar 13, 85Jun 10, 86[B21D]
4593917 Seal system, particularly suitable for the ball joint of installations laid at great depthsExpiredApr 02, 85Jun 10, 86[F16J]
4494893 Adjustable apparatus for supporting an underwater pipe laid at great depth over a depression in the sea bedExpiredMar 15, 83Jan 22, 85[F16L]
4488867 Method for controlling the heat load of a plant fed with natural gas of variable calorific value and densityExpiredJun 18, 81Dec 18, 84[F23N]
4415185 Flexible metal coupling for joining underwater pipes laid at great depthExpiredMay 13, 81Nov 15, 83[F16L]
4388752 Method for the sealtight jointing of a flanged sleeve to a pipeline, especially for repairing subsea pipelines laid on very deep sea bottomsExpiredMay 01, 81Jun 21, 83[B23P]
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