Ion focusing and manipulation
US-2024242953-A1 · Jul 18, 2024 · US
using surface ionisation, e.g. field-, thermionic- or photo-emission
using surface ionisation, e.g. field-, thermionic- or photo-emission · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01J49/16 |
| Official title | using surface ionisation, e.g. field-, thermionic- or photo-emission |
| Display label | using surface ionisation, e.g. field-, thermionic- or photo-emission |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 27 |
| 2016 | 21 |
| 2017 | 20 |
| 2018 | 34 |
| 2019 | 22 |
| 2020 | 35 |
| 2021 | 28 |
| 2022 | 33 |
| 2023 | 24 |
| 2024 | 13 |
| 2025 | 16 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of analyzing crude oil
US-2017343526-A1 · Nov 30, 2017 · US
Dual Mode Ionization Device
US-2017309465-A1 · Oct 26, 2017 · US
Mass spectrometry analysis of microorganisms in samples
US-2017309462-A1 · Oct 26, 2017 · US
Impactor Spray Ion Source
US-2017263428-A1 · Sep 14, 2017 · US
Multi inlet for solvent assisted inlet ionisation
US-9761428-B2 · Sep 12, 2017 · US
Ion Source
US-2017243729-A1 · Aug 24, 2017 · US
Secondary Ultrasonic Nebulisation
US-2017176401-A1 · Jun 22, 2017 · US
Interfacing capillary electrophoresis to a mass spectrometer via an impactor spray ionization source
US-9618488-B2 · Apr 11, 2017 · US
Method and system of atmospheric pressure megavolt electrostatic field ionization desorption (apme-fid)
US-2017084442-A1 · Mar 23, 2017 · US
Sample dispenser including an internal standard and methods of use thereof
US-2017082604-A1 · Mar 23, 2017 · US
Blanking out of pulses in pulsed lasers for ldi mass spectrometers
US-2017076932-A1 · Mar 16, 2017 · US
Trapping multiple ions
US-2016379815-A1 · Dec 29, 2016 · US
Impactor Spray Atmospheric Pressure Ion Source with Target Paddle
US-2016365232-A1 · Dec 15, 2016 · US
Sample dispenser including an internal standard and methods of use thereof
US-9500572-B2 · Nov 22, 2016 · US
Systems and methods for bubble based ion sources
US-2016329202-A1 · Nov 10, 2016 · US
Microdroplet ionisation mass spectrometry
US-9490111-B2 · Nov 8, 2016 · US
Mass spectrometry probes and systems for ionizing a sample transport
US-2016314956-A1 · Oct 27, 2016 · US
Continuously moving target for an atmospheric pressure ion source
US-9437398-B2 · Sep 6, 2016 · US
Mass spectrometry analysis of microorganisms in samples
US-2016254131-A1 · Sep 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01J49/16?
- CPC H01J49/16 is the Cooperative Patent Classification code for “using surface ionisation, e.g. field-, thermionic- or photo-emission.”
- How many patents are filed under CPC H01J49/16 (using surface ionisation, e.g. field-, thermionic- or photo-emission)?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC H01J49/16 growing?
- Publication counts under this code: 13 in 2024 vs 16 in 2025 (latest complete years).