Inventor · disambiguated record
Lan-Kun Don
Also filed as: DON LAN-KUN
16 granted patents·7 pending applications·420 citations·filing 1993–2010
95Inventor score
Files withTONG LUNG METAL IND CO LTD14DON LAN-KUN3LIU CHENG-CHUNG2TONG LUNG METAL INDUSTRY CO1TUNG LUNG METAL INDUSTRY CO LT1
Top patents by PatentIndex Score
23 records- 0189US6575006B1LockTONG LUNG METAL IND CO LTD·Filed 2002·Granted Jun 10, 2003·43 cites·8 claims
- 0288US7066507B2Post-removable construction of a door lock deviceTONG LUNG METAL IND CO LTD·Filed 2004·Granted Jun 27, 2006·40 cites·6 claims
- 0384US7748759B2Door 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
- 0482US7581421B2Door 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
- 0580US5666833AReinforcing apparatus for a lever handle of a door lockTONG LUNG METAL IND CO LTD·Filed 1994·Granted Sep 16, 1997·53 cites·15 claims
- 0679US7748758B2Cylinder lock having improved torsional strengthTONG LUNG METAL IND CO LTD·Filed 2007·Granted Jul 6, 2010·17 cites·18 claims
- 0779US5722273ALatch bolt operating deviceTONG LUNG METAL IND CO LTD·Filed 1996·Granted Mar 3, 1998·44 cites·11 claims
- 0874US6935148B2Lock engaging-and-disengaging mechanismTONG LUNG METAL IND CO LTD·Filed 2003·Granted Aug 30, 2005·18 cites·2 claims
- 0971US7073829B2Restoring structure of a lockTONG LUNG METAL IND CO LTD·Filed 2004·Granted Jul 11, 2006·15 cites·4 claims
- 1071US6230528B1Adjustable device for an auxiliary lockTONG LUNG METAL INDUSTRY CO·Filed 1999·Granted May 15, 2001·31 cites·5 claims
- 1171US5551264ADoor 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
- 1266US8182005B2Cylinder lock with reinforcements to improve structural strengthLIU CHENG-CHUNG·Filed 2008·Granted May 22, 2012·10 cites·8 claims
- 1364US8182006B2Cylinder lock having a reinforcement structure coupled to an outer rose discLIU CHENG-CHUNG·Filed 2009·Granted May 22, 2012·4 cites·16 claims
- 1463US5385374AReinforced cylindrical door lock setTONG LUNG METAL IND CO LTD·Filed 1993·Granted Jan 31, 1995·24 cites·6 claims
- 1561US5655393ADoor lock set with simultaneously retractable deadbolt and latchTONG LUNG METAL IND CO LTD·Filed 1995·Granted Aug 12, 1997·30 cites·7 claims
- 1654US5474346AFace plate adapted to be inserted into a bore of a doorTONG LUNG METAL IND CO LTD·Filed 1993·Granted Dec 12, 1995·22 cites·5 claims
- 1754US2009025438A1Lockset having an electrically operated clutch to control transmission of rotation from an outside handle to an outside spindleDON LAN-KUN·Filed 2008·Application pending·0 cites
- 1853US2008083253A1Door lock assembly with which a door cannot be unlatched by rotating a handleDON LAN-KUN·Filed 2007·Application pending·0 cites
- 1942US2008098775A1Door lock assembly that causes a handle to idle when placed in a locking positionDON LAN-KUN·Filed 2007·Application pending·0 cites
- 2041US2008016928A1Interchangeable lock core cylinderYANG JU-LIN·Filed 2007·Application pending·0 cites
- 2138US2004130162A1Adjustable latchTUNG LUNG METAL INDUSTRY CO LT·Filed 2003·Application pending·0 cites
- 2237US2005184538A1Lock assembly having improved mounting cap and spindle combinationFiled 2005·Application pending·0 cites
- 2336US2010225123A1Latch-bolt mechanism with a distance-adjusting deviceTONG LUNG METAL IND CO LTD·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →