Assignee
TONG LUNG METAL IND CO LTD
TW·85 granted patents·6 pending applications·1,944 citations·filing 1986–2024
Top patents by PatentIndex Score
91 records- 0193USD778708SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2016·Granted Feb 14, 2017·49 cites·1 claims
- 0292USD513469SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2003·Granted Jan 10, 2006·62 cites·1 claims
- 0392US5067758ALock handle assembly with limited angular movementTONG LUNG METAL IND CO LTD·Filed 1990·Granted Nov 26, 1991·82 cites·3 claims
- 0490US6622535B2Lock construction having an electrically activated clutch mechanism and a transmission mechanismTONG LUNG METAL IND CO LTD·Filed 2001·Granted Sep 23, 2003·63 cites·18 claims
- 0589USD1084820SElectronic lockTONG LUNG METAL IND CO LTD·Filed 2023·Granted Jul 22, 2025·12 cites·1 claims
- 0689US8371627B2Latch-bolt mechanism operable to allow for idle rotation of an exterior handleTONG LUNG METAL IND CO LTD·Filed 2010·Granted Feb 12, 2013·20 cites·10 claims
- 0789US7874191B2Cylinder lockTONG LUNG METAL IND CO LTD·Filed 2008·Granted Jan 25, 2011·21 cites·32 claims
- 0889USD588439SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2008·Granted Mar 17, 2009·56 cites·1 claims
- 0989US7100407B2Handled lock set for a doorTONG LUNG METAL IND CO LTD·Filed 2004·Granted Sep 5, 2006·38 cites·10 claims
- 1089US6575006B1LockTONG LUNG METAL IND CO LTD·Filed 2002·Granted Jun 10, 2003·43 cites·8 claims
- 1188US10612272B2Electronic lock and method for positioning the electronic lockTONG LUNG METAL IND CO LTD·Filed 2018·Granted Apr 7, 2020·8 cites·17 claims
- 1288US9303433B2Transmission mechanism of a lock assemblyTONG LUNG METAL IND CO LTD·Filed 2013·Granted Apr 5, 2016·14 cites·21 claims
- 1388US8960740B2Lock shell assemblyTONG LUNG METAL IND CO LTD·Filed 2013·Granted Feb 24, 2015·16 cites·9 claims
- 1488US7066507B2Post-removable construction of a door lock deviceTONG LUNG METAL IND CO LTD·Filed 2004·Granted Jun 27, 2006·40 cites·6 claims
- 1588US6585302B2Electrically operated lockTONG LUNG METAL IND CO LTD·Filed 2001·Granted Jul 1, 2003·41 cites·4 claims
- 1687USD1063590SSmart lockTONG LUNG METAL IND CO LTD·Filed 2022·Granted Feb 25, 2025·12 cites·1 claims
- 1787USD1012667SSmart lockTONG LUNG METAL IND CO LTD·Filed 2022·Granted Jan 30, 2024·11 cites·1 claims
- 1887US6615630B2Door lockTONG LUNG METAL IND CO LTD·Filed 2000·Granted Sep 9, 2003·37 cites·7 claims
- 1987US5431034ACylinder lock with removable and replaceable key plugTONG LUNG METAL IND CO LTD·Filed 1993·Granted Jul 11, 1995·83 cites·16 claims
- 2086USD966865SDoor handleTONG LUNG METAL IND CO LTD·Filed 2021·Granted Oct 18, 2022·13 cites·1 claims
- 2185US7137657B2Reinforced apparatus for a lever handle of a door lockTONG LUNG METAL IND CO LTD·Filed 2004·Granted Nov 21, 2006·30 cites·5 claims
- 2284US7748759B2Door lock having an unlocking mechanism for simultaneously unlatching latch-bolt and deadbolt mechanismsTONG LUNG METAL IND CO LTD·Filed 2007·Granted Jul 6, 2010·24 cites·6 claims
- 2384USD508393SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2003·Granted Aug 16, 2005·32 cites·1 claims
- 2482USD729610SDecorative lock coverTONG LUNG METAL IND CO LTD·Filed 2014·Granted May 19, 2015·28 cites·1 claims
- 2582US7581421B2Door lock assembly having a support structure to support a tailpiece and a retaining plateTONG LUNG METAL IND CO LTD·Filed 2007·Granted Sep 1, 2009·12 cites·4 claims
- 2682US4711477ADuplex latch bolt mechanismTONG LUNG METAL IND CO LTD·Filed 1986·Granted Dec 8, 1987·48 cites·14 claims
- 2781US12234672B2Bi-directional electronic lock device and method for setting up the same when mounted on a doorTONG LUNG METAL IND CO LTD·Filed 2022·Granted Feb 25, 2025·1 cites·8 claims
- 2880US5666833AReinforcing apparatus for a lever handle of a door lockTONG LUNG METAL IND CO LTD·Filed 1994·Granted Sep 16, 1997·53 cites·15 claims
- 2979US7975518B2Re-keyable lock with improvements for preventing incomplete re-keyingTONG LUNG METAL IND CO LTD·Filed 2008·Granted Jul 12, 2011·11 cites·9 claims
- 3079US7748758B2Cylinder lock having improved torsional strengthTONG LUNG METAL IND CO LTD·Filed 2007·Granted Jul 6, 2010·17 cites·18 claims
- 3179US5722273ALatch bolt operating deviceTONG LUNG METAL IND CO LTD·Filed 1996·Granted Mar 3, 1998·44 cites·11 claims
- 3279US5222383ACylinder lockTONG LUNG METAL IND CO LTD·Filed 1992·Granted Jun 29, 1993·41 cites·4 claims
- 3379US4831687ADoor closer with a concealed mountingTONG LUNG METAL IND CO LTD·Filed 1987·Granted May 23, 1989·47 cites·5 claims
- 3478US5301526ALock set with improved spindle mechanismTONG LUNG METAL IND CO LTD·Filed 1992·Granted Apr 12, 1994·48 cites·18 claims
- 3577USD867853SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2018·Granted Nov 26, 2019·17 cites·1 claims
- 3677USD513166SEscutcheonTONG LUNG METAL IND CO LTD·Filed 2003·Granted Dec 27, 2005·23 cites·1 claims
- 3777US4639025AAdjustable dead bolt assemblyTONG LUNG METAL IND CO LTD·Filed 1986·Granted Jan 27, 1987·40 cites·8 claims
- 3874US11145149B2Electronic lockTONG LUNG METAL IND CO LTD·Filed 2020·Granted Oct 12, 2021·1 cites·19 claims
- 3974USD745360SDoor handleTONG LUNG METAL IND CO LTD·Filed 2014·Granted Dec 15, 2015·22 cites·1 claims
- 4074US6935148B2Lock engaging-and-disengaging mechanismTONG LUNG METAL IND CO LTD·Filed 2003·Granted Aug 30, 2005·18 cites·2 claims
- 4174US5562317AInner handle assembly of cylinder lockTONG LUNG METAL IND CO LTD·Filed 1995·Granted Oct 8, 1996·37 cites·8 claims
- 4273US10526816B2Door lock having locking mechanismTONG LUNG METAL IND CO LTD·Filed 2016·Granted Jan 7, 2020·3 cites·24 claims
- 4372USD705037SExterior deadboltTONG LUNG METAL IND CO LTD·Filed 2012·Granted May 20, 2014·18 cites·1 claims
- 4472USD506665SDoorknobTONG LUNG METAL IND CO LTD·Filed 2003·Granted Jun 28, 2005·18 cites·1 claims
- 4572US5083823ALatch bolt operating device with lever handles and improved privacy lock mechanismTONG LUNG METAL IND CO LTD·Filed 1991·Granted Jan 28, 1992·31 cites·5 claims
- 4672US5074605ADuplex latch-bolt mechanismTONG LUNG METAL IND CO LTD·Filed 1989·Granted Dec 24, 1991·27 cites·6 claims
- 4771US7073829B2Restoring structure of a lockTONG LUNG METAL IND CO LTD·Filed 2004·Granted Jul 11, 2006·15 cites·4 claims
- 4871US6929290B2Adjustable button mechanism for a lockTONG LUNG METAL IND CO LTD·Filed 2003·Granted Aug 16, 2005·21 cites·5 claims
- 4971US5551264ADoor lock having a deadbolt assembly with a low-cost corrosion-resistant bolt memberTONG LUNG METAL IND CO LTD·Filed 1994·Granted Sep 3, 1996·33 cites·14 claims
- 5071US4768817ADead bolt assemblyTONG LUNG METAL IND CO LTD·Filed 1987·Granted Sep 6, 1988·32 cites·2 claims
Showing the top 50 of 91 patent records by PatentIndex Score.
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