Systems, devices, and methods for ion beam modulation
US-2025157776-A1 · May 15, 2025 · US
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Negative ion sources
Negative ion sources · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J27/028 |
| Official title | {Negative ion sources} |
| Display label | Negative ion sources |
| Total patents | 17 |
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 | 2 |
| 2017 | 5 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Axial ion source with magnetic field adjustment
US-2025037985-A1 · Jan 30, 2025 · US
Systems, devices, and methods for ion beam modulation
US-12154750-B2 · Nov 26, 2024 · US
Cyclotron having continuously variable energy output
US-12106925-B2 · Oct 1, 2024 · US
Cyclotron having continuously variable energy output
US-2023207247-A1 · Jun 29, 2023 · US
Systems and methods for continuously supplying negative ions using multi-pulsed plasma sources
US-11337296-B2 · May 17, 2022 · US
Systems, devices, and methods for ion beam modulation
US-2022084774-A1 · Mar 17, 2022 · US
Systems and methods for continuously supplying negative ions using multi-pulsed plasma sources
US-2020288561-A1 · Sep 10, 2020 · US
Negative ribbon ion beams from pulsed plasmas
US-10290470-B2 · May 14, 2019 · US
Negative Ribbon Ion Beams from Pulsed Plasmas
US-2017309454-A1 · Oct 26, 2017 · US
Apparatus and method for generating high current negative hydrogen ion beam
US-9773636-B2 · Sep 26, 2017 · US
Negative ribbon ion beams from pulsed plasmas
US-9734991-B2 · Aug 15, 2017 · US
Apparatus and method for generating high current negative hydrogen ion beam
US-2017053776-A1 · Feb 23, 2017 · US
Negative Ribbon Ion Beams from Pulsed Plasmas
US-2017032937-A1 · Feb 2, 2017 · US
Method and apparatus for generating high current negative hydrogen ion beam
US-9437341-B2 · Sep 6, 2016 · US
Anion generating and electron capture dissociation apparatus using cold electrons
US-9230791-B2 · Jan 5, 2016 · US
Multiple anode ion source
US-8946651-B2 · Feb 3, 2015 · US