Extensions device and control signal conversion method thereof
US-2025357712-A1 · Nov 20, 2025 · US
Two-pole devices
Two-pole devices · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01R33/05 |
| Official title | Two-pole devices |
| Display label | Two-pole devices |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic connection assembly
US-12322916-B2 · Jun 3, 2025 · US
Power track
US-12095211-B2 · Sep 17, 2024 · US
Power track
US-2024235140-A1 · Jul 11, 2024 · US
Eyewear device charging case
US-11947390-B2 · Apr 2, 2024 · US
Conductive mechanism and lamp
US-11923647-B2 · Mar 5, 2024 · US
Electronic connection assembly
US-2023420901-A1 · Dec 28, 2023 · US
Holder device for power supply rail
US-2023402803-A1 · Dec 14, 2023 · US
Lamp socket with ventilation channel
US-11817661-B2 · Nov 14, 2023 · US
Lamp socket with retaining clip for lamp
US-11791598-B2 · Oct 17, 2023 · US
Conductive mechanism and lamp
US-2023213177-A1 · Jul 6, 2023 · US
Base and detection apparatus
US-11522314-B2 · Dec 6, 2022 · US
Lamp socket with retaining clip for lamp
US-2022376450-A1 · Nov 24, 2022 · US
Lamp socket with ventilation channel
US-2022376448-A1 · Nov 24, 2022 · US
Self-powered traffic signaling wireport device assembly
US-2022167515-A1 · May 26, 2022 · US
Sealing mechanism inside electrical member
US-2022140556-A1 · May 5, 2022 · US
Eyewear device charging case
US-11322959-B1 · May 3, 2022 · US
Wireport assembly
US-11284528-B2 · Mar 22, 2022 · US
Adaptor, light source device, and lighting apparatus
US-10976040-B2 · Apr 13, 2021 · US
Wireport assembly
US-2020337166-A1 · Oct 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01R33/05?
- CPC H01R33/05 is the Cooperative Patent Classification code for “Two-pole devices.”
- How many patents are filed under CPC H01R33/05 (Two-pole devices)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC H01R33/05 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).