Cobalt chloride (cocl2) - patents, research & applications

87,814Patents

2,280Research papers2,277 indexed in detail

9,414Patents - last 3 years

102Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#	Assignee	Patents
1	China Petrochemical Corp	1,838
2	BASF SE	1,028
3	Fujifilm Holdings Corp	839
4	3M Co	787
5	Mitsui Chemicals Inc	662

6	Bayer AG	607
7	Mitsubishi Chemical Group Corp	578
8	Sumitomo Chemical Co Ltd	576
9	Toyobo Co Ltd	569
10	Chinese Academy of Sciences	452

Explore the full landscape

This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#	Code	Area	Patents
1	`Y02E`	Climate change mitigation: energy	13,349
2	`B01J`	Chemical/physical processes (e.g. catalysts)	10,036
3	`H01M`	Batteries and accumulators	8,483
4	`C07C`	Acyclic and carbocyclic compounds	7,913
5	`A61K`	Medicinal preparations	7,826

6	`A61P`	Therapeutic activity (drug indications)	7,735
7	`Y02P`	Climate change mitigation: production	7,083
8	`C12N`	Microorganisms, enzymes	7,050
9	`C07D`	Heterocyclic compounds	6,785
10	`C01P`	Inorganic compound parameters	4,812

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Representative patents

The filings that best characterise the patent activity around this compound, most-referenced first.

Title	Year	Assignee	Cited by
Preparation method of PAN/CoCl2/CNTs composite nano fibers and application of PAN/CoCl2/CNTs composite nano fibers to NaBH4 hydrogen production	2015		9
Use of CoCl#-[2] in preparation of drug for treating leukemia	2004		3
Use of CoCl#-[2] in preparation of drug for treating leukemia	2006		1
Process for production of CoCl2 solution from cobaltic oxide-hydrate	1983	Vale SA	1
Process of separating substantially pure ferrous chloride from a mixture of fecl2 and cocl2	1954		0

How research activity has moved

Papers published per year for this compound, over the last decade of indexed records.

Year	Papers
2016	79
2017	67
2018	88
2019	54
2020	71
2021	30
2022	37
2023	35
2024	47
2025	20

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#	Author	Affiliation	Papers
1	Fernando Morgan de Aguiar Corrêa	Universidade de São Paulo	17
2	Carlos C. Crestani	Universidade de São Paulo	16
3	Shigeki Shibahara	Tohoku University	6
4	Hiroshi Sakagami	Meikai University	6
5	Leonardo B.M. Resstel	Universidade de São Paulo	6

6	Govindarajan Padmanaban	Indian Institute of Science Bangalore	5
7	Federica Romani	Università Cattolica del Sacro Cuore	5
8	Temitayo Olabisi Ajibade	University of Ibadan	5
9	Wolfgang Jelkmann	University of Lübeck	5
10	Dhananjay Shukla	Defence Institute of Physiology and Allied Sciences	5

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Title	Year	Cited by	Topic
Purification and Characterization of Hypoxia-inducible Factor 1	1995	2080	Epigenetics and DNA Methylation
Reactive Oxygen Species Generated at Mitochondrial Complex III Stabilize Hypoxia-inducible Factor-1α during Hypoxia	2000	1973	Cancer, Hypoxia, and Metabolism
Regulation of Hypoxia-Inducible Factor 1α Expression and Function by the Mammalian Target of Rapamycin	2002	1180	Cancer, Hypoxia, and Metabolism
Metal-triggered Structural Transformations, Aggregation, and Fibrillation of Human α-Synuclein	2001	1102	Parkinson's Disease Mechanisms and Treatments
Autocrine VEGF Signaling Is Required for Vascular Homeostasis	2007	1049	Angiogenesis and VEGF in Cancer

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular formula and weight of cobalt chloride?

Cobalt chloride has the molecular formula Cl₂Co with a molecular weight of 129.8332 g/mol. It is also known by the canonical name cobalt(2+) dichloride.

Which organizations hold the most patents related to cobalt chloride?

The leading patent assignees for cobalt chloride are China Petrochemical Corp with 1,838 patents, BASF SE with 1,028 patents, and Fujifilm Holdings Corp with 839 patents. Other major assignees include 3M Co, Mitsubi Chemicals Inc, and Bayer AG.

How has patent activity for cobalt chloride changed in recent years?

Patent filings for cobalt chloride have shown a general upward trend, with 4,039 patents filed in 2019, increasing to 5,161 patents in 2024. In the last three years (2022-2024), there were 9,414 patents filed total, reflecting sustained industrial interest in cobalt chloride applications.

What are the primary patent technology classifications associated with cobalt chloride?

The most common patent classifications for cobalt chloride are Y02E (13,349 patents), B01J covering chemical apparatus and processes (10,036 patents), H01M for electrochemistry and batteries (8,483 patents), and C07C for organic chemistry (7,913 patents). A61K and A61P classifications with 7,826 and 7,735 patents respectively indicate pharmaceutical applications.

What specific applications of cobalt chloride are documented in the patent literature?

Patent applications document cobalt chloride use in hydrogen production from composite nanofibrous materials, as shown in a 2015 patent on PAN/CoCl₂/CNTs composite nanofibers for NaBH₄ hydrogen production. Patents from 2004 and 2006 also describe its use in preparation of drugs for treating leukemia, and a 1983 patent describes a process for producing CoCl₂ solution from cobaltic oxide-hydrate.