Inventor · disambiguated record
Louis Leegrande Barrett
Also filed as: BARRETT LOUIS L · BARRETT LOUIS LEEGRANDE
24 granted patents·7 pending applications·174 citations·filing 2008–2025
95Inventor score
Top patents by PatentIndex Score
31 records- 0192US10281454B2Tunable optical receiverFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2016·Granted May 7, 2019·6 cites·16 claims
- 0291US9801993B2Sensor clip assembly for an optical monitoring systemBARRETT LOUIS L·Filed 2011·Granted Oct 31, 2017·56 cites·18 claims
- 0390US10426387B2Direct light differential measurement systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2016·Granted Oct 1, 2019·4 cites·20 claims
- 0490US10117590B2Transcutaneous measurement of hemoglobin changes to calculate estimated blood volume change during peritoneal dialysisFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2016·Granted Nov 6, 2018·13 cites·19 claims
- 0588US10881347B2Closed loop dialysis treatment using adaptive ultrafiltration ratesFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2018·Granted Jan 5, 2021·11 cites·14 claims
- 0687US8287739B2Measuring hematocrit and estimating hemoglobin values with a non-invasive, optical blood monitoring systemBARRETT LOUIS LEEGRANDE·Filed 2012·Granted Oct 16, 2012·30 cites·17 claims
- 0787US2024423517A1Direct light differential measurement systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2024·Application pending·0 cites
- 0879US11241176B2Direct light differential measurement system with increased noise immunityFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2019·Granted Feb 8, 2022·1 cites·22 claims
- 0978US12114973B2Direct light differential measurement systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2022·Granted Oct 15, 2024·0 cites·18 claims
- 1073US10471201B2Sensor clip assembly for an optical monitoring systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2018·Granted Nov 12, 2019·1 cites·18 claims
- 1173US9194792B2Blood chamber for an optical blood monitoring systemBARRETT LOUIS L·Filed 2010·Granted Nov 24, 2015·7 cites·17 claims
- 1273US9173988B2Sensor clip assembly for an optical monitoring systemBARRETT LOUIS L·Filed 2011·Granted Nov 3, 2015·12 cites·18 claims
- 1372US2024358905A1Systems and methods for measuring electrical characteristic of medical fluidsFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2024·Application pending·0 cites
- 1470US11389576B2Determination of patient blood volume at start of a dialysis treatmentFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2018·Granted Jul 19, 2022·1 cites·8 claims
- 1570USD799031SBlood flow chamber with directional arrowFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2015·Granted Oct 3, 2017·15 cites·1 claims
- 1669US11141515B2System and method for dialyzer evaluationFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2020·Granted Oct 12, 2021·0 cites·22 claims
- 1768US11013846B2Controlling data output of a sensor clip assembly for an optical monitoring systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2020·Granted May 25, 2021·0 cites·16 claims
- 1868US10625011B2System and method for dialyzer evaluationFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2017·Granted Apr 21, 2020·1 cites·14 claims
- 1968US8130369B2Measuring hematocrit and estimating hemoglobin values with a non-invasive, optical blood monitoring systemBARRETT LOUIS LEEGRANDE·Filed 2008·Granted Mar 6, 2012·5 cites·20 claims
- 2068US2025387548A1Dynamic measurement of constituent concentration in aqueous solutionsFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2025·Application pending·0 cites
- 2167US12059519B2Systems and methods for measuring electrical characteristic of medical fluidsFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2021·Granted Aug 13, 2024·0 cites·16 claims
- 2267US10765792B2System and method for dialyzer evaluationFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2020·Granted Sep 8, 2020·0 cites·20 claims
- 2366US9370324B2Hemodialysis patient data acquisition, management and analysis systemBARRETT LOUIS LEEGRANDE·Filed 2008·Granted Jun 21, 2016·9 cites·7 claims
- 2466US2025152092A1Closed loop dialysis treatment using adaptive ultrafiltration ratesFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2025·Application pending·0 cites
- 2565US2022323658A1Determination of patient blood volume at start of a dialysis treatmentFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2022·Application pending·0 cites
- 2664US12239459B2Closed loop dialysis treatment using adaptive ultrafiltration ratesFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2020·Granted Mar 4, 2025·0 cites·20 claims
- 2764US10668204B2Remote interfacing with a sensor clip assembly for an optical monitoring systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2019·Granted Jun 2, 2020·0 cites·16 claims
- 2859US10179201B2Sensor clip assembly for an optical monitoring systemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2017·Granted Jan 15, 2019·0 cites·19 claims
- 2946US2016256090A1Hemodialysis Patient Data Acquisition, Management and Analysis SystemFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2016·Application pending·0 cites
- 3039USD979050SBlood flow lineFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2019·Granted Feb 21, 2023·2 cites·1 claims
- 3138US2018000394A1Method and system for creating a diagnostic vascular windowFRESENIUS MEDICAL CARE HOLDINGS INC·Filed 2017·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Louis Leegrande Barrett files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →