Heat treatment; Thermal decomposition; Chemical vapour deposition

Heat treatment; Thermal decomposition; Chemical vapour deposition · 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 codeH01F41/22
Official titleHeat treatment; Thermal decomposition; Chemical vapour deposition
Display labelHeat treatment; Thermal decomposition; Chemical vapour deposition
Total patents64

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20154
20165
20177
20187
20199
202011
20217
20224
20233
20245
20251
20261

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 H01F41/22?
CPC H01F41/22 is the Cooperative Patent Classification code for “Heat treatment; Thermal decomposition; Chemical vapour deposition.”
How many patents are filed under CPC H01F41/22 (Heat treatment; Thermal decomposition; Chemical vapour deposition)?
Our database includes 64 publications tagged with this CPC code.
Is patent activity under CPC H01F41/22 growing?
Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).