for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence)

for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB65D81/266
Official title{for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence)}
Display labelfor absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence)
Total patents386

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
201523
201648
201753
201832
201933
202026
202143
202234
202331
202431
202528
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 B65D81/266?
CPC B65D81/266 is the Cooperative Patent Classification code for “for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence).”
How many patents are filed under CPC B65D81/266 (for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence))?
Our database includes 386 publications tagged with this CPC code.
Is patent activity under CPC B65D81/266 growing?
Publication counts under this code: 31 in 2024 vs 28 in 2025 (latest complete years).