Patent holdings for IPC class B66C 13/02

Total number of patents in this class: 193

10-year publication summary

14
11
20
19
23
6
14
11
8
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Itrec B.V.
477
15
National Oilwell Varco Norway AS
109
9
Barge Master IP B.V.
10
6
Versabar, Inc.
48
6
Carraha, Kimberly A.
11
5
Chin, Howard M.
11
5
Grant Prideco, Inc.
384
5
IFP Energies Nouvelles
2717
5
National Oilwell Varco, L.P.
1604
5
J. Ray McDermott, S.A.
59
4
Safelink AS
11
4
Ampelmann Holding B.V.
21
3
Ixblue
81
3
Optilift AS
5
3
Saipem S.p.A.
513
3
Subsea 7 Norway AS
85
3
Technip France
737
3
WT Industries, LLC
6
3
Sealartec Ltd.
3
3
Noble Drilling A/S
49
3
Other owners 97