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  • C - Chemistrymetallurgy
  • C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C08F 4/656 - Pretreating with metals or metal-containing compounds with silicon or compounds thereof

Patent holdings for IPC class C08F 4/656

Total number of patents in this class: 124

10-year publication summary

3
9
5
8
3
3
3
6
4
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
SABIC Global Technologies B.V.
4471
45
Saudi Basic Industries Corporation
532
15
PetroChina Company Limited
778
5
W.R. Grace & Co.-conn.
357
5
ExxonMobil Chemical Patents Inc.
3865
4
Basell Polyolefine GmbH
535
4
W. R. Grace & Co.-Conn.
301
4
Dow Global Technologies LLC
10754
3
Basell Poliolefine Italia S.r.l.
927
3
Formosa Plastics Corporation, U.S.A.
79
3
LG Chem, Ltd.
17786
2
BASF Corporation
1690
2
Union Carbide Corporation
255
2
Union Carbide Chemicals & Plastics Technology LLC
101
2
Beijing University of Chemical Technology
325
2
Reliance Industries Limited
453
2
Saudi Basic Industries Corporation (sabic)
17
2
DSM IP Assets B.V.
5457
1
Dow Global Technologies Inc.
737
1
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
297
1
Other owners 16

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