having base-exchange properties, e.g. crystalline zeolites, pillared clays

having base-exchange properties, e.g. crystalline zeolites, pillared clays · 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 codeC07C2529/04
Official titlehaving base-exchange properties, e.g. crystalline zeolites, pillared clays
Display labelhaving base-exchange properties, e.g. crystalline zeolites, pillared clays
Total patents77

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
20153
20165
20179
20184
201916
20206
20217
20227
20239
202410
20251

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 C07C2529/04?
CPC C07C2529/04 is the Cooperative Patent Classification code for “having base-exchange properties, e.g. crystalline zeolites, pillared clays.”
How many patents are filed under CPC C07C2529/04 (having base-exchange properties, e.g. crystalline zeolites, pillared clays)?
Our database includes 77 publications tagged with this CPC code.
Is patent activity under CPC C07C2529/04 growing?
Publication counts under this code: 10 in 2024 vs 1 in 2025 (latest complete years).