Assignee
LIU CHI CHANG
TW·29 granted patents·17 pending applications·134 citations·filing 2007–2024
Top patents by PatentIndex Score
46 records- 0194US11085721B1Safety device for crossbowLIU CHI CHANG·Filed 2020·Granted Aug 10, 2021·13 cites·7 claims
- 0292US11402172B2CrossbowLIU CHI CHANG·Filed 2021·Granted Aug 2, 2022·9 cites·9 claims
- 0392US10663249B1Crossbow with quick-shooting deviceLIU CHI CHANG·Filed 2019·Granted May 26, 2020·21 cites·9 claims
- 0491US10495403B1Arrow supply assembly for bowLIU CHI CHANG·Filed 2019·Granted Dec 3, 2019·17 cites·10 claims
- 0589US11549778B1Arrow press device for crossbowsLIU CHI CHANG·Filed 2022·Granted Jan 10, 2023·6 cites·7 claims
- 0689US11466957B1Crossbow string drawing assist systemLIU CHI CHANG·Filed 2022·Granted Oct 11, 2022·6 cites·5 claims
- 0787US10996019B2Support device for a crossbowLIU CHI CHANG·Filed 2020·Granted May 4, 2021·5 cites·2 claims
- 0886US10378853B1Cocking device for crossbowLIU CHI CHANG·Filed 2018·Granted Aug 13, 2019·12 cites·9 claims
- 0985US11448479B1Protection device for limbs of crossbowLIU CHI CHANG·Filed 2021·Granted Sep 20, 2022·4 cites·2 claims
- 1080US11761728B2Crossbow with replaceable bow unitLIU CHI CHANG·Filed 2022·Granted Sep 19, 2023·2 cites·5 claims
- 1178US12422213B2Arrow magazine replacing deviceLIU CHI CHANG·Filed 2023·Granted Sep 23, 2025·1 cites·12 claims
- 1278US12061060B1Arrow shooting device with arrow chain driving structureLIU CHI CHANG·Filed 2023·Granted Aug 13, 2024·1 cites·10 claims
- 1377US10215520B1Safety device for crossbowsLIU CHI CHANG·Filed 2018·Granted Feb 26, 2019·7 cites·6 claims
- 1476US12104877B2Crossbow with replaceable bow unitLIU CHI CHANG·Filed 2022·Granted Oct 1, 2024·1 cites·8 claims
- 1576US11193727B1Protection device for crossbowLIU CHI CHANG·Filed 2020·Granted Dec 7, 2021·2 cites·10 claims
- 1675US10408561B1Device for a crossbowLIU CHI CHANG·Filed 2018·Granted Sep 10, 2019·6 cites·7 claims
- 1775US9644919B1Secondary safety device for crossbowsLIU CHI-CHANG·Filed 2016·Granted May 9, 2017·7 cites·8 claims
- 1872US10670368B1Cocking device for a crossbowLIU CHI CHANG·Filed 2019·Granted Jun 2, 2020·5 cites·6 claims
- 1969US11761727B2Arrow feeding device for crossbowLIU CHI CHANG·Filed 2021·Granted Sep 19, 2023·1 cites·9 claims
- 2069US10663248B1Limb and string pack for crossbowLIU CHI CHANG·Filed 2019·Granted May 26, 2020·4 cites·6 claims
- 2161US2015104778A1System and method for computer based mentorshipLIU CHI-CHANG·Filed 2014·Application pending·0 cites
- 2259US9851170B1Arrow retention device of crossbowLIU CHI-CHANG·Filed 2017·Granted Dec 26, 2017·3 cites·7 claims
- 2354US12385713B2Arrow chain structureLIU CHI CHANG·Filed 2023·Granted Aug 12, 2025·0 cites·12 claims
- 2453US11378366B1Escape-prevention arrowLIU CHI CHANG·Filed 2021·Granted Jul 5, 2022·0 cites·3 claims
- 2553US2022128328A1Arrow feeding device for crossbowLIU CHI CHANG·Filed 2022·Application pending·0 cites
- 2650US2022049921A1Arrow feeding device for crossbowLIU CHI CHANG·Filed 2020·Application pending·0 cites
- 2749US2025321072A1Arrow magazine loading deviceLIU CHI CHANG·Filed 2024·Application pending·0 cites
- 2849US2025321073A1Crossbow with auxiliary structure for replacing arrow clipLIU CHI CHANG·Filed 2024·Application pending·0 cites
- 2948USD1095731SArrowLIU CHI CHANG·Filed 2024·Granted Sep 30, 2025·0 cites·1 claims
- 3047US12504252B2Rapid repeating deviceLIU CHI CHANG·Filed 2023·Granted Dec 23, 2025·0 cites·10 claims
- 3147US12025400B1Continuous shooting device with controllable arrow chain structureLIU CHI CHANG·Filed 2023·Granted Jul 2, 2024·0 cites·10 claims
- 3246USD1077967SArrowLIU CHI CHANG·Filed 2023·Granted Jun 3, 2025·0 cites·1 claims
- 3345US2021048269A1Support device for a crossbowLIU CHI CHANG·Filed 2019·Application pending·0 cites
- 3445US2007202909A1Method for push-to-talk over mobile communication devicesLIU CHI-CHANG·Filed 2007·Application pending·0 cites
- 3544US2022412687A1Arrow feeding device for crossbowLIU CHI CHANG·Filed 2022·Application pending·0 cites
- 3644US2013307796A1Touchscreen Device Integrated Computing System And MethodLIU CHI-CHANG·Filed 2013·Application pending·0 cites
- 3741US2022333891A1Arrow feeding device for crossbowLIU CHI CHANG·Filed 2021·Application pending·0 cites
- 3840US2013307777A1Input Device, System and Method Using Event Signal CodingLIU CHI-CHANG·Filed 2012·Application pending·0 cites
- 3938US2020088492A1Limb assembly for sport bowLIU CHI CHANG·Filed 2018·Application pending·0 cites
- 4038US2022163279A1Trigger for crossbowLIU CHI CHANG·Filed 2020·Application pending·0 cites
- 4137US2022026171A1Arrow feeding device for crossbowLIU CHI CHANG·Filed 2020·Application pending·0 cites
- 4236US2012127246A1Ink cartridge structureLIU CHI-CHANG·Filed 2010·Application pending·0 cites
- 4336US2012127245A1Pivot cover structure for ink cartridgeLIU CHI-CHANG·Filed 2010·Application pending·0 cites
- 4434US2016033227A1Compound bow structureLIU CHI-CHANG·Filed 2015·Application pending·0 cites
- 4533USD730473SRecurve long bowLIU CHI-CHANG·Filed 2014·Granted May 26, 2015·1 cites·1 claims
- 4630USD730472SUnstrung recurve long bowLIU CHI-CHANG·Filed 2014·Granted May 26, 2015·0 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →