• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F16L - Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
• F16L 21/05 - Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings comprising a first ring being placed on a male part and a second ring in the sleeve or socket

Patent holdings for IPC class F16L 21/05

Total number of patents in this class: 23

10-year publication summary

Principal owners for this class