DC

David Yu Chang

IBM: 52 patents #1,616 of 70,183Top 3%
Caterpillar: 20 patents #188 of 8,398Top 3%
Overall (All Time): #27,703 of 4,157,543Top 1%
72
Patents All Time

Issued Patents All Time

Showing 25 most recent of 72 patents

Patent #TitleCo-InventorsDate
12359605 Systems and methods for in-cylinder engine pressure sensor cooling 2025-07-15
11637691 Management of a size of a ledger Vishwanath Venkataramappa, Messaoud Benantar 2023-04-25
11566545 Cam actuated gas admission valve with electro-hydraulic trim control David T. Montgomery, Scott B. Fiveland, Scott F. Shafer 2023-01-31
11326507 Ignitor for natural gas engine 2022-05-10
11297066 Constrained roles for access management Yi-Hsiu Wei, Ching-Yun Chao, Hui-Ming Lin 2022-04-05
11236705 Gaseous fuel mixer assembly for engine and engine system operating method 2022-02-01
11196774 Network application security question detection and modification Yi-Hsiu Wei, Ching-Yun Chao 2021-12-07
11176274 Protecting user data Adam Yoho, Wilalberto Rodriguez, Paul W. Bennett, Zechariah Hein 2021-11-16
11138188 Performance optimization Ching-Yun Chao, Yi-Hsiu Wei 2021-10-05
11078827 Pre-chamber ignition system having igniter with gas orifice structured for pre-expanding outgoing combustion gases 2021-08-03
11078826 Gaseous fuel engine and sparkless operating strategy therefor 2021-08-03
11066977 Ignitor for natural gas engine 2021-07-20
11032083 Atomic transactional processing Ching-Yun Chao, Yi-Hsiu Wei 2021-06-08
10929616 Topic based conversation retrieval Messaoud Benantar, Vishwanath Venkataramappa, Liam Harpur 2021-02-23
10897463 Managing and securing manageable resources in stateless web server architecture using servlet filters John Y. Chang, Vishwanath Venkataramappa 2021-01-19
10834122 Prevention of majority attacks Ching-Yun Chao, Yi-Hsiu Wei 2020-11-10
10650134 Discreet user identification and multiple device modes of operations Michael Schiller, Adam Yoho, Wilalberto Rodriguez, Paul W. Bennett 2020-05-12
10592608 Topic based conversation retrieval Messaoud Benantar, Vishwanath Venkataramappa, Liam Harpur 2020-03-17
10382563 Establishing cross-vendor secure connectivity in a shared computing environment Messaoud Benantar, John Y. Chang, Vishwanath Venkataramappa 2019-08-13
10367806 Managing and securing manageable resources in stateless web server architecture using servlet filters John Y. Chang, Vishwanath Venkataramappa 2019-07-30
10072561 Piston Weidong Gong 2018-09-11
9722995 Managing and securing manageable resources in stateless web server architecture using servlet filters John Y. Chang, Vishwanath Venkataramappa 2017-08-01
9288214 Authentication and authorization methods for cloud computing platform security Messaoud Benantar, John Y. Chang, Vishwanath Venkataramappa 2016-03-15
9052963 Cloud computing data center machine monitor and control John Y. Chang, Edwin M Philpot, Jr., Vishwanath Venkataramappa 2015-06-09
9021093 Managing and securing manageable resources in stateless web server architecture using servlet filters John Y. Chang, Vishwanath Venkataramappa 2015-04-28