G01R 15/241
Using electro-optical modulators
Official title: {using electro-optical modulators, e.g. electro-absorption (probes containing electro-optic elements G01R1/071)}
G01R15/241 (Using electro-optical modulators) appears on 211 US grants and 104 published applications in this corpus.
Search patents in G01R- Granted patents
- 211
- Published applications
- 104
- Assignees
- 132
- Inventors
- 375
- Latest grant
- 16 Dec 2025
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| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
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| 1998 | 12 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 1 |
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| 2004 | 3 | 7 |
| 2005 | 6 | 4 |
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| 2021 | 6 | 2 |
| 2022 | 6 | 3 |
| 2023 | 1 | 6 |
| 2024 | 4 | 3 |
| 2025 | 3 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and structure to incorporate multiple low loss photonic circuit components16 Dec 2025US 12,498,402 B2Psiquantum, Corp.
- Device and method for measuring voltage by using optical element29 Jul 2025US 12,372,558 B2Agency for Defense Development
- Thin-film optical voltage sensor for voltage sensing24 Jun 2025US 12,339,300 B2Chan Zuckerberg Biohub, Inc.
- Electric field sensor15 Oct 2024US 12,117,475 B2Hosei University
- Electro-optical sensor for high intensity electric field measurement8 Oct 2024US 12,111,342 B2National Technology & Engineering Solutions of Sandia, LLC
- Method and structure to incorporate multiple low loss photonic circuit components19 Mar 2026US 2026/0079185 A1Psiquantum, Corp.
- Optical voltage sensing systems and electro-optic crystal assemblies11 Sep 2025US 2025/0283920 A1
- A temperature stable optical pockels electric field sensor and methods thereof11 Sep 2025US 2025/0283921 A1Micatu Inc.
- Optical voltage probe21 Aug 2025US 2025/0264503 A1Seikoh Giken Co., Ltd.
- All Fiber Electro-Optical Voltage Sensor for Electrical Switchgear12 Jun 2025US 2025/0189564 A1OpticAmpere LLC
Most cited
By later US patents
- Measurement of electrical signals with subpicosecond resolution87US 4,618,819 AUniversity of Rochester · 1986
- Measurement of electrical signals with picosecond resolution74US 4,446,425 AUniversity of Rochester · 1984
- Optical to optical infrared imaging detection system68US 8,405,823 B2Attofemto, Inc. · 2013
- Voltage testing and measurement57US 6,803,777 B22004
- Method for testing a device under test including the interference of two beams56US 6,512,385 B12003