Inventor
LEIS VIKTOR
DE21 patents
⚠️ This page may combine multiple inventors who share the name “LEIS VIKTOR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TABLEAU SOFTWARE INC
18 patentsUS10642832B1May 5, 2020
Reducing the domain of a subquery by retrieving constraints from the outer query
TABLEAU SOFTWARE INC29 citations97
US10325010B1Jun 18, 2019
Hybrid approach to collating unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC11 citations92
US10089281B1Oct 2, 2018
Hybrid comparison for unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC16 citations92
US10089282B1Oct 2, 2018
Hybrid approach to collating unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC14 citations92
US10789416B2Sep 29, 2020
Hybrid comparison for unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC4 citations84
US10540425B2Jan 21, 2020
Hybrid comparison for unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC9 citations84
US11068520B1Jul 20, 2021
Optimizing database query execution by extending the relational algebra to include non-standard join operators
TABLEAU SOFTWARE INC8 citations83
US11055331B1Jul 6, 2021
Adaptive interpretation and compilation of database queries
TABLEAU SOFTWARE INC6 citations83
US10521430B1Dec 31, 2019
Dynamic selection of query execution operators
TABLEAU SOFTWARE INC10 citations82
US10824625B1Nov 3, 2020
Computing domain cardinality estimates for optimizing database query execution
TABLEAU SOFTWARE INC7 citations80
US10795887B1Oct 6, 2020
Dynamic rebuilding of query execution trees and reselection of query execution operators
TABLEAU SOFTWARE INC2 citations71
US12339882B2Jun 24, 2025
Adaptive interpretation and compilation of database queries
TABLEAU SOFTWARE INC0 citations62
US11789988B2Oct 17, 2023
Optimizing database query execution by extending the relational algebra to include non-standard join operators
TABLEAU SOFTWARE INC0 citations62
US11704347B2Jul 18, 2023
Adaptive interpretation and compilation of database queries
TABLEAU SOFTWARE INC0 citations62
US11211943B2Dec 28, 2021
Hybrid comparison for unicode text strings consisting primarily of ASCII characters
TABLEAU SOFTWARE INC0 citations62
US11720561B2Aug 8, 2023
Dynamic rebuilding of query execution trees and reselection of query execution operators
TABLEAU SOFTWARE INC0 citations61
US11301469B2Apr 12, 2022
Dynamic rebuilding of query execution trees and reselection of query execution operators
TABLEAU SOFTWARE INC0 citations61
US11514048B2Nov 29, 2022
Computing domain cardinality estimates for optimizing database query execution
TABLEAU SOFTWARE INC0 citations59
IBM
3 patentsUS10108653B2Oct 23, 2018
Concurrent reads and inserts into a data structure without latching or waiting by readers
IBM2 citations73
US11080260B2Aug 3, 2021
Concurrent reads and inserts into a data structure without latching or waiting by readers
IBM0 citations62
US10831736B2Nov 10, 2020
Fast multi-tier indexing supporting dynamic update
IBM0 citations42