with provision for simultaneous communication in two directions

with provision for simultaneous communication in two directions · 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 codeH04B1/56
Official titlewith provision for simultaneous communication in two directions
Display labelwith provision for simultaneous communication in two directions
Total patents284

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
201531
201641
201735
201833
201943
202029
202123
202216
202312
202410
202510
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 H04B1/56?
CPC H04B1/56 is the Cooperative Patent Classification code for “with provision for simultaneous communication in two directions.”
How many patents are filed under CPC H04B1/56 (with provision for simultaneous communication in two directions)?
Our database includes 284 publications tagged with this CPC code.
Is patent activity under CPC H04B1/56 growing?
Publication counts under this code: 10 in 2024 vs 10 in 2025 (latest complete years).