Selection of substances as active materials, active masses, active liquids

Selection of substances as active materials, active masses, active liquids · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01M4/36
Official titleSelection of substances as active materials, active masses, active liquids
Display labelSelection of substances as active materials, active masses, active liquids
Total patents2,200

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
201586
201668
201791
2018124
2019142
2020145
202192
2022125
2023405
2024438
2025411
202673

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 H01M4/36?
CPC H01M4/36 is the Cooperative Patent Classification code for “Selection of substances as active materials, active masses, active liquids.”
How many patents are filed under CPC H01M4/36 (Selection of substances as active materials, active masses, active liquids)?
Our database includes 2,200 publications tagged with this CPC code.
Is patent activity under CPC H01M4/36 growing?
Publication counts under this code: 438 in 2024 vs 411 in 2025 (latest complete years).