PatentsDB

of unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT]

of unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT] · 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 codeH10D48/032
Official title{of unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT]}
Display labelof unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT]
Total patents45

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
20158
20167
20179
20184
20194
20207
20212
20223
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 H10D48/032?
CPC H10D48/032 is the Cooperative Patent Classification code for “of unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT].”
How many patents are filed under CPC H10D48/032 (of unipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions, e.g. hot electron transistors [HET], metal base transistors [MBT], resonant tunneling transistors [RTT], bulk barrier transistors [BBT], planar doped barrier transistors [PDBT] or charge injection transistors [CHINT])?
Our database includes 45 publications tagged with this CPC code.
Is patent activity under CPC H10D48/032 growing?
Publication counts under this code: 3 in 2022 vs 1 in 2025 (latest complete years).