Inventor
DOUCHY MICHEL
FR7 patents
⚠️ This page may combine multiple inventors who share the name “DOUCHY MICHEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VALLOUREC
5 patentsUS4364770ADec 21, 1982
Manufacture of a composite tubular product
VALLOUREC26 citations78
US4708897ANov 24, 1987
Composite product having a tubular metal casing with a welt-type seam, and a core in powder form, which can be rolled up
VALLOUREC18 citations71
US4816068AMar 28, 1989
Composite article having a tubular sheath containing a compacted material, for the treatment of liquid metals, and process for the production of said article
VALLOUREC6 citations70
US4486227ADec 4, 1984
Manufacture of a composite tubular product
VALLOUREC14 citations69
US4906292AMar 6, 1990
Composite article having a tubular sheath containing a compacted material, for the treatment of liquid metals, and process for the production of said article
VALLOUREC4 citations59