CPC Main Group
F16L 19/00 Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts (F16L17/00 takes precedence; if using bolts or equivalent connecting means F16L23/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00 )
5 direct subcodes
Child Classifications
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- F16L 19/02 Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L 19/04 using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
- F16L 19/06 in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L 19/08 with metal rings which bite into the wall of the pipe
Top Applicants
Top 10 applicants by patent filingsfor class F16, 2013–2023, worldwide · Source: EPO PATSTAT
- SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
- ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
- HYUNDAI MOTOR COMPANY KR 7,933
- ROBERT BOSCH DE 7,059
- KIA MOTORS CORPORATION KR 4,867
- SKF SE 4,729
- TOYOTA MOTOR CORPORATION JP 4,111
- FORD GLOBAL TECHNOLOGIES US 3,838
- GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
- TOYOTA MOTOR CORPORATION 3,499