System and methods to prevent unauthorized usage of card readers
US-12548033-B2 · Feb 10, 2026 · US
by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G06K7/06 |
| Official title | by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark |
| Display label | by means which conduct current when a mark is sensed or absent, e.g. contact brush for a conductive mark |
| Total patents | 41 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12548033-B2 · Feb 10, 2026 · US
US-2026036714-A1 · Feb 5, 2026 · US
US-2025104084-A1 · Mar 27, 2025 · US
US-2025037136-A1 · Jan 30, 2025 · US
US-12169841-B2 · Dec 17, 2024 · US
US-12125041-B2 · Oct 22, 2024 · US
US-2023274284-A1 · Aug 31, 2023 · US
US-11710134-B2 · Jul 25, 2023 · US
US-11558665-B2 · Jan 17, 2023 · US
US-2022391903-A1 · Dec 8, 2022 · US
US-11409853-B2 · Aug 9, 2022 · US
US-2022232283-A1 · Jul 21, 2022 · US
US-11321719-B2 · May 3, 2022 · US
US-11303960-B2 · Apr 12, 2022 · US
US-2021295337-A1 · Sep 23, 2021 · US
US-2021264389-A1 · Aug 26, 2021 · US
US-2021110016-A1 · Apr 15, 2021 · US
US-2021081944-A1 · Mar 18, 2021 · US
US-2021051366-A1 · Feb 18, 2021 · US
US-10832252-B2 · Nov 10, 2020 · US
Answers are generated from the same data shown on this page.