Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes

Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC01B3/0005
Official titleReversible storage of hydrogen, e.g. by hydrogen getters or electrodes
Display labelReversible storage of hydrogen, e.g. by hydrogen getters or electrodes
Total patents66

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20155
20166
20172
20188
20195
20204
202110
20227
20236
20244
20255
20264

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C01B3/0005?
CPC C01B3/0005 is the Cooperative Patent Classification code for “Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes.”
How many patents are filed under CPC C01B3/0005 (Reversible storage of hydrogen, e.g. by hydrogen getters or electrodes)?
Our database includes 66 publications tagged with this CPC code.
Is patent activity under CPC C01B3/0005 growing?
Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).