Amplifier device for amplifying small currents
US-2025192731-A1 · Jun 12, 2025 · US
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Rolff Norbert patents
Rolff Norbert is listed as an inventor on 19 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Rolff Norbert |
| Total patents | 19 |
| First publication | Jan 15, 2015 |
| Latest publication | Jun 12, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Gas detector with an ionizing device
US-11754525-B2 · Sep 12, 2023 · US
Method for leak testing using a film chamber with ventilated measuring volume
US-11630024-B2 · Apr 18, 2023 · US
Gas Detector with an Ionizing Device
US-2022136997-A1 · May 5, 2022 · US
Method for leak testing with a foil chamber with vented measurement volume
US-11320337-B2 · May 3, 2022 · US
Method for leak testing using a film chamber with ventilated measuring volume
US-2021048367-A1 · Feb 18, 2021 · US
Gross leak measurement in an incompressible test item in a film chamber
US-10900862-B2 · Jan 26, 2021 · US
Method for Leak Testing with a Foil Chamber with Vented Measurement Volume
US-2020378862-A1 · Dec 3, 2020 · US
Gas leak search using a test gas spray device
US-10837857-B2 · Nov 17, 2020 · US
Film chamber with measuring volume for gross leak detection
US-10309862-B2 · Jun 4, 2019 · US
Recent patents
Latest publications not already listed above.
Gas Leak Search Using a Test Gas Spray Device
US-2019120715-A1 · Apr 25, 2019 · US
Gross leak measurement in an incompressible test item in a film chamber
US-2018372579-A1 · Dec 27, 2018 · US
Sniffer leak detector with multi-stage membrane pump
US-9810597-B2 · Nov 7, 2017 · US
Film Chamber with Measuring Volume for Gross Leak Detection
US-2017254720-A1 · Sep 7, 2017 · US
Device for supplying voltage to the cathode of a mass spectrometer
US-9530634-B2 · Dec 27, 2016 · US
Sniffer Leak Detector with Multi-Stage Membrane Pump
US-2016223424-A1 · Aug 4, 2016 · US
Method for determining the maximum mass peak in mass spectrometry
US-9147561-B2 · Sep 29, 2015 · US
Device for supplying voltage to the cathode of a mass spectrometer
US-2015028743-A1 · Jan 29, 2015 · US
Method for determining the maximum mass peak in mass spectrometry
US-2015014523-A1 · Jan 15, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Inficon Gmbh | 19 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01M3/3281 | 6 |
| G01M3/3218 | 4 |
| G01M3/36 | 4 |
| G01M3/205 | 4 |
| G01R19/0061 | 3 |