Inventor · disambiguated record
Norbert Rolff
Also filed as: ROLFF NORBERT
20 granted patents·2 pending applications·105 citations·filing 1992–2020
93Inventor score
Top patents by PatentIndex Score
22 records- 0184US10309862B2Film chamber with measuring volume for gross leak detectionINFICON GMBH·Filed 2015·Granted Jun 4, 2019·3 cites·12 claims
- 0284US8171773B2Sniffing leak detectorWETZIG DANIEL·Filed 2007·Granted May 8, 2012·11 cites·7 claims
- 0380US11320337B2Method for leak testing with a foil chamber with vented measurement volumeINFICON GMBH·Filed 2018·Granted May 3, 2022·2 cites·3 claims
- 0480US7444854B2Leak indicator with test leak and test leak for integration into a leak detectorINFICON GMBH·Filed 2006·Granted Nov 4, 2008·8 cites·16 claims
- 0573US9810597B2Sniffer leak detector with multi-stage membrane pumpINFICON GMBH·Filed 2014·Granted Nov 7, 2017·5 cites·8 claims
- 0671US8752412B2Sniffing leak detectorWETZIG DANIEL·Filed 2008·Granted Jun 17, 2014·6 cites·5 claims
- 0771US8117886B2Leak detector with a leak detector testing deviceROLFF NORBERT·Filed 2007·Granted Feb 21, 2012·7 cites·13 claims
- 0868US10900862B2Gross leak measurement in an incompressible test item in a film chamberINFICON GMBH·Filed 2016·Granted Jan 26, 2021·1 cites·8 claims
- 0961US5770956AMeasurement amplifierLEYBOLD AG·Filed 1994·Granted Jun 23, 1998·21 cites·7 claims
- 1060US6474172B1Method for measuring the gas pressure in a container, and devices for its applicationUNAKIS BALZERS AG·Filed 1998·Granted Nov 5, 2002·24 cites·20 claims
- 1157US7415829B2Piston compressorOERLIKON LEYBOLD VACUUM GMBH·Filed 2003·Granted Aug 26, 2008·5 cites·18 claims
- 1254US11754525B2Gas detector with an ionizing deviceINFICON GMBH·Filed 2020·Granted Sep 12, 2023·0 cites·12 claims
- 1351US9147561B2Method for determining the maximum mass peak in mass spectrometryINFICON GMBH·Filed 2013·Granted Sep 29, 2015·0 cites·8 claims
- 1451US8893543B2Leak detection methodBOHN MARTIN·Filed 2009·Granted Nov 25, 2014·2 cites·17 claims
- 1549US11630024B2Method for leak testing using a film chamber with ventilated measuring volumeINFICON GMBH·Filed 2019·Granted Apr 18, 2023·0 cites·3 claims
- 1647US10837857B2Gas leak search using a test gas spray deviceINFICON GMBH·Filed 2017·Granted Nov 17, 2020·0 cites·8 claims
- 1747US9530634B2Device for supplying voltage to the cathode of a mass spectrometerINFICON GMBH·Filed 2013·Granted Dec 27, 2016·0 cites·9 claims
- 1847US8302454B2Method for calibrating a mass spectrometric sniffing leak detectorROLFF NORBERT·Filed 2006·Granted Nov 6, 2012·1 cites·6 claims
- 1942US5543706ACircuit and method for measuring current in a circuitLEYBOLD AG·Filed 1992·Granted Aug 6, 1996·9 cites·21 claims
- 2038US2011100097A1Leakage SeekerGERDAU LUDOLF·Filed 2007·Application pending·0 cites
- 2136US2009120165A1Sampling Leak DetectorLANG PETER·Filed 2006·Application pending·0 cites
- 2233US8416091B2Sniffing probeROLFF RANDOLF·Filed 2005·Granted Apr 9, 2013·0 cites·6 claims
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