in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment

in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment · 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 codeC10G49/007
Official title{in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment}
Display labelin the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment
Total patents81

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
20159
20169
20178
201810
20195
20206
202111
20227
20236
20243
20257

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 C10G49/007?
CPC C10G49/007 is the Cooperative Patent Classification code for “in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment.”
How many patents are filed under CPC C10G49/007 (in the presence of hydrogen from a special source or of a special composition or having been purified by a special treatment)?
Our database includes 81 publications tagged with this CPC code.
Is patent activity under CPC C10G49/007 growing?
Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).