Inventor
SANG ALEXANDER K
US22 patents
⚠️ This page may combine multiple inventors who share the name “SANG ALEXANDER K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
INTUITIVE SURGICAL OPERATIONS
21 patentsUS10823627B2Nov 3, 2020
Shape sensing with multi-core fiber sensor
INTUITIVE SURGICAL OPERATIONS76 citations97
US11624870B2Apr 11, 2023
Redundant core in multicore optical fiber for safety
INTUITIVE SURGICAL OPERATIONS4 citations85
US10983268B2Apr 20, 2021
Redundant core in multicore optical fiber for safety
INTUITIVE SURGICAL OPERATIONS8 citations83
US10775157B2Sep 15, 2020
Methods and apparatus for calibration for a fiber optic shape sensor
INTUITIVE SURGICAL OPERATIONS10 citations83
US10545283B2Jan 28, 2020
Redundant core in multicore optical fiber for safety
INTUITIVE SURGICAL OPERATIONS8 citations83
US10132614B2Nov 20, 2018
Dissimilar cores in multicore optical fiber for strain and temperature separation
INTUITIVE SURGICAL OPERATIONS12 citations83
US10976155B2Apr 13, 2021
Micro optic assemblies and optical interrogation systems
INTUITIVE SURGICAL OPERATIONS4 citations82
US11761754B2Sep 19, 2023
Micro optic assemblies and optical interrogation systems
INTUITIVE SURGICAL OPERATIONS2 citations73
US11499818B2Nov 15, 2022
Micro optic assemblies and optical interrogation systems
INTUITIVE SURGICAL OPERATIONS3 citations73
US11193751B2Dec 7, 2021
Method and apparatus for motion compensation in interferometric sensing systems
INTUITIVE SURGICAL OPERATIONS2 citations73
US11035699B2Jun 15, 2021
Methods and apparatus for determining shape parameter(s) using a sensing fiber having a single core with multiple light propagating modes
INTUITIVE SURGICAL OPERATIONS4 citations73
US9841269B2Dec 12, 2017
Method and apparatus for compensating for a time-varying disturbance in interferometric sensing systems
INTUITIVE SURGICAL OPERATIONS2 citations73
US10054420B2Aug 21, 2018
Method and apparatus for motion compensation in interferometric sensing systems using a non-linear compensating signal
INTUITIVE SURGICAL OPERATIONS1 citations63
US12546584B2Feb 10, 2026
Micro optic assemblies and optical interrogation systems
INTUITIVE SURGICAL OPERATIONS0 citations62
US12411278B2Sep 9, 2025
Redundant core in multicore optical fiber for safety
INTUITIVE SURGICAL OPERATIONS0 citations62
US12235138B2Feb 25, 2025
Optical fiber with microgratings for increased measurable strain range
INTUITIVE SURGICAL OPERATIONS0 citations62
US11940305B2Mar 26, 2024
Methods and apparatus for determining shape parameter(s) using a sensing fiber having a single core with multiple light propagating modes
INTUITIVE SURGICAL OPERATIONS0 citations62
US11761797B2Sep 19, 2023
Optical fiber with microgratings for increased measurable strain range
INTUITIVE SURGICAL OPERATIONS0 citations62
US11473941B2Oct 18, 2022
Methods and apparatus for determining shape parameter(s) using a sensing fiber having a single core with multiple light propagating modes
INTUITIVE SURGICAL OPERATIONS0 citations62
US9797795B2Oct 24, 2017
Distributed pressure measurement by embedded fiber optic strain sensor
INTUITIVE SURGICAL OPERATIONS3 citations61
US10245115B2Apr 2, 2019
Fiber optic sensing of tool strain or tool angle
INTUITIVE SURGICAL OPERATIONS1 citations60