Guildline Instruments Limited
Smiths Falls, CA· latest recorded location
Guildline Instruments Limited is named on 11 US grants and 15 published applications in this corpus. Its most frequent classification is G01R (Measuring electric variables).
- Granted patents
- 11
- Published applications
- 15
- Inventors
- 8
- Granted in 2026 so far
- 0
- Most recent grant
- 24 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 4 | 3 |
| 2018 | 2 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year.
Technology areas
Share of 26 documents
Recent patents
- Null detector devices and systems employing same24 Nov 2020US 10,845,394 B2
- Methods and devices for high stability precision voltage dividers18 Aug 2020US 10,746,837 B2
- Methods and systems relating to improved AC signal performance of dual stage transformers27 Nov 2018US 10,139,432 B2
- Methods and devices for AC current sources, precision current transducers and detectors18 Sep 2018US 10,078,102 B2
- Methods and systems relating to AC current measurements28 Nov 2017US 9,829,512 B2
- Self-calibrating electrical standards21 Aug 2025US 2025/0264568 A1
- Methods and devices for high stability precision voltage dividers26 Sep 2019US 2019/0293742 A1
- Null detector devices and systems employing same6 Jun 2019US 2019/0170796 A1
- Methods and devices for ac current sources, precision current transducers and detectors26 Oct 2017US 2017/0307662 A1
- Methods and devices for high stability precision voltage dividers26 Oct 2017US 2017/0307718 A1
Most cited
By later US patents
- High current precision resistance measurement system3US 8,106,669 B22012
- Methods and systems relating to AC current measurements2US 9,829,512 B22017
- Null detector devices and systems employing same1US 10,845,394 B22020
- Methods and systems for accuracy improvement in current comparators1US 9,632,164 B22017
- Methods and devices for AC current sources, precision current transducers and detectors1US 9,759,748 B22017