Inventor · disambiguated record
Karl Lai
Also filed as: LAI KARL
53 granted patents·6 pending applications·720 citations·filing 2005–2025
98Inventor score
Files withSUN LOCK CO LTD50LAI ERIC3LAI KARL2THE SUN LOCK INTERNATIONAL COMPANY LTD2DG INT HOLDINGS LTD1
Top patents by PatentIndex Score
59 records- 0199USD1011865SCombination padlockSUN LOCK CO LTD·Filed 2022·Granted Jan 23, 2024·12 cites·1 claims
- 0298US11261622B2High security combination padlock with ease of use reset mechanismSUN LOCK CO LTD·Filed 2020·Granted Mar 1, 2022·7 cites·13 claims
- 0398USD864695SPadlockSUN LOCK CO LTD·Filed 2017·Granted Oct 29, 2019·19 cites·1 claims
- 0497US10221591B2Padlock with fully integrated dual locking mechanism with reset mechanismSUN LOCK CO LTD·Filed 2015·Granted Mar 5, 2019·12 cites·14 claims
- 0597US9556650B1High security combination padlockSUN LOCK CO LTD·Filed 2016·Granted Jan 31, 2017·19 cites·11 claims
- 0697US9464460B2Padlock with fully integrated dual locking mechanism with a lost code defining systemSUN LOCK CO LTD·Filed 2015·Granted Oct 11, 2016·21 cites·20 claims
- 0797US8661861B2Dual locking system for integrated zipper lockLAI KARL·Filed 2012·Granted Mar 4, 2014·72 cites·20 claims
- 0896US7562545B2Padlock with fully integrated dual locking systemsSUN LOCK CO LTD·Filed 2006·Granted Jul 21, 2009·51 cites·11 claims
- 0995US11346127B2Hook lock with dual locking functionSUN LOCK CO LTD·Filed 2020·Granted May 31, 2022·4 cites·17 claims
- 1095US10443272B2Dual unlocking mode padlockSUN LOCK CO LTD·Filed 2018·Granted Oct 15, 2019·12 cites·15 claims
- 1195US10047541B2Dual locking system with user controllable plateSUN LOCK CO LTD·Filed 2016·Granted Aug 14, 2018·13 cites·9 claims
- 1295US9890559B2Padlock with fully integrated dual locking mechanism with reset mechanismSUN LOCK CO LTD·Filed 2016·Granted Feb 13, 2018·15 cites·15 claims
- 1395US9803398B2Combination padlock with dual locking and advanced anti-pick mechanismSUN LOCK CO LTD·Filed 2015·Granted Oct 31, 2017·14 cites·9 claims
- 1495US7225648B2Padlock with fully integrated dual locking system with indicator/signal assemblySUN LOCK CO LTD·Filed 2005·Granted Jun 5, 2007·37 cites·18 claims
- 1594US9487969B2Combination padlock with anti-pick and anti-peek mechanismSUN LOCK CO LTD·Filed 2015·Granted Nov 8, 2016·12 cites·15 claims
- 1694US8776556B2Combination padlock with secondary opening mechanismSUN LOCK CO LTD·Filed 2012·Granted Jul 15, 2014·24 cites·21 claims
- 1794US7467529B1Lockable luggage strap assemblySUN LOCK CO LTD·Filed 2007·Granted Dec 23, 2008·34 cites·14 claims
- 1893US11199025B2Combination padlock with anti-picking and decode mechanismSUN LOCK CO LTD·Filed 2019·Granted Dec 14, 2021·9 cites·14 claims
- 1993US8931313B2Lock with dual locking systemLAI KARL·Filed 2012·Granted Jan 13, 2015·23 cites·20 claims
- 2093US8919155B2Padlock with fully integrated dual locking systemSUN LOCK CO LTD·Filed 2013·Granted Dec 30, 2014·17 cites·18 claims
- 2193US7467531B2Key operated padlock construction with visual indicatorSUN LOCK CO LTD·Filed 2006·Granted Dec 23, 2008·33 cites·18 claims
- 2291US7685851B2Security padlock having a secondary locking systemSUN LOCK CO LTD·Filed 2008·Granted Mar 30, 2010·27 cites·5 claims
- 2390US8511118B2High security, dual-mode padlock constructionLAI ERIC·Filed 2009·Granted Aug 20, 2013·25 cites·18 claims
- 2490US8261583B2High security, dual-mode padlock constructionLAI ERIC·Filed 2008·Granted Sep 11, 2012·27 cites·20 claims
- 2589US9206625B2Padlock with fully integrated dual unlocking systemSUN LOCK CO LTD·Filed 2014·Granted Dec 8, 2015·16 cites·18 claims
- 2689US8826703B2High security combination disc padlockSUN LOCK CO LTD·Filed 2012·Granted Sep 9, 2014·13 cites·11 claims
- 2789US8096150B2Padlocks for holding and securing zipper pullsLAI ERIC·Filed 2007·Granted Jan 17, 2012·26 cites·15 claims
- 2887US11954959B2Biometric lockSUN LOCK CO LTD·Filed 2022·Granted Apr 9, 2024·1 cites·18 claims
- 2987US10890013B2Cable lock with dual unlocking mechanismSUN LOCK CO LTD·Filed 2018·Granted Jan 12, 2021·6 cites·10 claims
- 3087US10214942B2Zipper padlock with a dual locking systemSUN LOCK CO LTD·Filed 2017·Granted Feb 26, 2019·6 cites·12 claims
- 3187US7765840B2Dual locking padlockSUN LOCK CO LTD·Filed 2007·Granted Aug 3, 2010·21 cites·23 claims
- 3285US9228376B2High security combination disc padlockSUN LOCK CO LTD·Filed 2014·Granted Jan 5, 2016·10 cites·7 claims
- 3385US8966946B2Combination key lock box with anti-pick mechanismSUN LOCK CO LTD·Filed 2014·Granted Mar 3, 2015·11 cites·10 claims
- 3483USD789174SCombination padlockSUN LOCK CO LTD·Filed 2016·Granted Jun 13, 2017·22 cites·1 claims
- 3582US11261621B2Integrated zipper lockSUN LOCK CO LTD·Filed 2019·Granted Mar 1, 2022·4 cites·19 claims
- 3681US9194158B2Anti-zipper puller sliding deviceSUN LOCK CO LTD·Filed 2013·Granted Nov 24, 2015·7 cites·20 claims
- 3780US11391063B2Cable lock having dual unlocking mechanismTHE SUN LOCK INTERNATIONAL COMPANY LTD·Filed 2019·Granted Jul 19, 2022·4 cites·5 claims
- 3878US10679441B2Electronic combination lock with different levels of access controlSUN LOCK CO LTD·Filed 2017·Granted Jun 9, 2020·4 cites·20 claims
- 3974US10267062B2Electronic combination lock with different levels of access controlSUN LOCK CO LTD·Filed 2016·Granted Apr 23, 2019·3 cites·20 claims
- 4073US10614641B2Electronic combination lock with different levels of access controlSUN LOCK CO LTD·Filed 2018·Granted Apr 7, 2020·2 cites·18 claims
- 4173US7269985B2Magnifying lens cover for combination padlocksSUN LOCK CO LTD·Filed 2005·Granted Sep 18, 2007·8 cites·12 claims
- 4272USD999044SKeypad of a padlockSUN LOCK CO LTD·Filed 2021·Granted Sep 19, 2023·0 cites·1 claims
- 4370US12448813B2Object shaped combination padlockSUN LOCK CO LTD·Filed 2022·Granted Oct 21, 2025·0 cites·31 claims
- 4468US9920549B2Combination padlockDG INT HOLDINGS LTD·Filed 2016·Granted Mar 20, 2018·2 cites·20 claims
- 4565USD914481SPadlockSUN LOCK CO LTD·Filed 2019·Granted Mar 30, 2021·8 cites·1 claims
- 4663US11024107B2Electronic combination lock with different levels of access controlSUN LOCK CO LTD·Filed 2020·Granted Jun 1, 2021·0 cites·12 claims
- 4763US2025223837A1Dual unlock padlock with reset functionSUN LOCK CO LTD·Filed 2024·Application pending·0 cites
- 4862US12492579B2Padlock with biometric opening meansSUN LOCK CO LTD·Filed 2023·Granted Dec 9, 2025·0 cites·13 claims
- 4962USD902691SCombination padlockSUN LOCK CO LTD·Filed 2019·Granted Nov 24, 2020·7 cites·1 claims
- 5062US2025314096A1High security combination padlock and locking shackle with opening and reset plate mechanismSUN LOCK CO LTD·Filed 2025·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →