CPC Subgroup
F16L 55/10 Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K)
Full Title
Devices or appurtenances for use in, or in connection with, pipes or pipe systems (F16L1/00 - F16L53/00, F16L57/00, F16L59/00 take precedence; repairing or joining pipes on or under water F16L1/26; cleaning of pipes B08B9/02, e.g. removal of blockages B08B9/027; devices for preventing bursting of water pipes by freezing E03B7/10) > Means for stopping flow in pipes or hoses (F16L29/00, F16L37/28 take precedence; valves F16K)
12 direct subcodes
Child Classifications
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- F16L 55/103 by temporarily freezing liquid sections in the pipe
- F16L 55/105 Closing devices introduced radially into the pipe or hose
- F16L 55/11 Plugs
- F16L 55/115 Caps
- F16L 55/12 by introducing into the pipe a member expandable in situ (inflatable cut-off valves F16K7/10)
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