Inventor · disambiguated record
Tak Chi Sher
Also filed as: SHER TAK C · SHER TAK CHI
21 granted patents·3 pending applications·479 citations·filing 1993–2004
96Inventor score
Technology areasF23Q
Files withPOLYCITY ENTPR LTD10POLYCITY IND LTD7POLYCITY IND LIMITED3POLYCITY ENTERPRISE LIMITED1POLYCITY ENTERPRISE LTD1
Top patents by PatentIndex Score
24 records- 0194US6478575B2LighterPOLYCITY ENTPR LTD·Filed 2001·Granted Nov 12, 2002·25 cites·17 claims
- 0292US6431853B1LighterPOLYCITY ENTPR LTD·Filed 2001·Granted Aug 13, 2002·23 cites·7 claims
- 0386US6315550B1Barbecue lighter with gas safety systemPOLYCITY ENTPR LTD·Filed 2000·Granted Nov 13, 2001·17 cites·5 claims
- 0483US6352429B1Safety lighter with rotary wheel hoodsPOLYCITY ENTPR LTD·Filed 2000·Granted Mar 5, 2002·16 cites·8 claims
- 0583US5788476AChildproof piezoelectric lighter with sliding mechanismPOLYCITY IND LTD·Filed 1997·Granted Aug 4, 1998·46 cites·22 claims
- 0681US5769625ASafety lighter with smooth striker wheel edgesPOLYCITY IND LIMITED·Filed 1996·Granted Jun 23, 1998·44 cites·12 claims
- 0780US5704776ASafety lock lighterPOLYCITY IND LTD·Filed 1993·Granted Jan 6, 1998·43 cites·3 claims
- 0878USD482932SLighterPOLYCITY ENTPR LTD·Filed 2003·Granted Dec 2, 2003·23 cites·1 claims
- 0977US6386861B1Lighter with safety switchPOLYCITY ENTPR LTD·Filed 2000·Granted May 14, 2002·13 cites·14 claims
- 1075USD410564SLighterPOLYCITY ENTERPRISE LTD·Filed 1998·Granted Jun 1, 1999·21 cites·1 claims
- 1169US6086359ALighter with a safety systemPOLYCITY ENTERPRISE LIMITED·Filed 1999·Granted Jul 11, 2000·30 cites·3 claims
- 1269US5460516ASafety lighter with locking striker wheelPOLYCITY IND LTD·Filed 1994·Granted Oct 24, 1995·29 cites·2 claims
- 1369US5421720ASafety lock lighter with sliding mechanismPOLYCITY IND LTD·Filed 1994·Granted Jun 6, 1995·29 cites·4 claims
- 1468US5407346APush type safety lock lighterPOLYCITY IND LTD·Filed 1994·Granted Apr 18, 1995·28 cites·3 claims
- 1564US5356286AChild proof safety lock lighterPOLYCITY IND LTD·Filed 1993·Granted Oct 18, 1994·25 cites·4 claims
- 1660US6533576B1Lighter with child resistant actuating leverPOLYCITY ENTPR LTD·Filed 1999·Granted Mar 18, 2003·17 cites·7 claims
- 1754USD498877SLighterPOLYCITY ENTPR LTD·Filed 2004·Granted Nov 23, 2004·8 cites·1 claims
- 1854US5846069ASafety lighter with wheel hoodPOLYCITY IND LIMITED·Filed 1996·Granted Dec 8, 1998·17 cites·15 claims
- 1953US5584683ASafety lighter with striker wheel stopperPOLYCITY IND LIMITED·Filed 1996·Granted Dec 17, 1996·17 cites·3 claims
- 2044USD518229SPortion of lighterPOLYCITY ENTPR LTD·Filed 2004·Granted Mar 28, 2006·5 cites·1 claims
- 2142US2002197577A1Lighter with child resistant actuating leverPOLYCITY ENTPR LTD·Filed 2002·Application pending·0 cites
- 2240US2005147935A1Sealing method and articleFiled 2002·Application pending·0 cites
- 2339US2003013058A1LighterFiled 2001·Application pending·0 cites
- 2431US5509799AFlint replaceable lighterPOLYCITY IND LTD·Filed 1994·Granted Apr 23, 1996·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →