System and method for testing optical proximity fuses
US-12553697-B2 · Feb 17, 2026 · US
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Checking fuzes; Testing fuzes
Checking fuzes; Testing fuzes · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F42C21/00 |
| Official title | Checking fuzes; Testing fuzes |
| Display label | Checking fuzes; Testing fuzes |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 3 |
| 2024 | 1 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method thereof for monitoring cloud-based electronic detonators
US-2025342220-A1 · Nov 6, 2025 · US
Addressable switch with initiator detection and initiator resistance measurement
US-12366144-B2 · Jul 22, 2025 · US
System and method for testing optical proximity fuses
US-2025198734-A1 · Jun 19, 2025 · US
Addressable Switch with Initiator Detection and Initiator Resistance Measurement
US-2025027391-A1 · Jan 23, 2025 · US
Addressable Switch with Initiator Detection and Initiator Resistance Measurement
US-2025027392-A1 · Jan 23, 2025 · US
Test and/or practice ammunition
US-12085375-B2 · Sep 10, 2024 · US
Fuze indication system
US-11307010-B2 · Apr 19, 2022 · US
Practice ammunition and training system using the practice ammunition
US-2022042777-A1 · Feb 10, 2022 · US
Test and/or practice ammunition
US-2022026186-A1 · Jan 27, 2022 · US
Fuze indication system
US-2021190465-A1 · Jun 24, 2021 · US
Computer controlled squib simulation system
US-10488170-B2 · Nov 26, 2019 · US
Systems and methods for testing arm and fire devices
US-10197611-B2 · Feb 5, 2019 · US
Computer Controlled Squib Simulation System
US-2018299238-A1 · Oct 18, 2018 · US
Unpowered railgun field validation for safe-arm fuzing
US-9915511-B1 · Mar 13, 2018 · US
Systems and methods for testing arm and fire devices
US-2017336460-A1 · Nov 23, 2017 · US
Apparatus and electric primer output data testing method
US-9618309-B2 · Apr 11, 2017 · US
Muzzle velocity measuring apparatus and method
US-9513308-B2 · Dec 6, 2016 · US
Apparatus and electric primer output data testing method
US-2016252337-A1 · Sep 1, 2016 · US