Cheng; Yang-Fu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cheng; Yang-Fu.The latest application filed is for "assisted opening knife with handle provided with pushing key for releasing and locking blade".
- Cheng; Yang-Fu - Taipei TW
- CHENG; Yang-Fu - Taipei City TW
| Patent | Date |
|---|---|
| Glass smasher Grant D878,178 - Cheng | 2020-03-17 |
| Knife structure allowing rapid and safe replacement, and secure positioning, of blade, and knife handle structure thereof Grant 10,525,606 - Cheng J | 2020-01-07 |
| Assisted Opening Knife With Handle Provided With Pushing Key For Releasing And Locking Blade App 20190344458 - CHENG; Yang-Fu | 2019-11-14 |
| Knife Structure Allowing Rapid And Safe Replacement, And Secure Positioning, Of Blade, And Knife Handle Structure Thereof App 20190217489 - CHENG; Yang-Fu | 2019-07-18 |
| Folding Knife Configured For Precise And Rapid Disassembly And Reassembly App 20190118395 - CHENG; Yang-Fu | 2019-04-25 |
| Glass Smasher With Rapidly Removable Protective Cover App 20180361178 - CHENG; Yang-Fu | 2018-12-20 |
| Multifunctional tool set Grant 10,112,293 - Cheng October 30, 2 | 2018-10-30 |
| Baton holder Grant D827,294 - Cheng September 4, 2 | 2018-09-04 |
| Baton holder Grant D824,163 - Cheng July 31, 2 | 2018-07-31 |
| Expandable Baton Structure With Smasher App 20180066915 - CHENG; Yang-Fu | 2018-03-08 |
| Multifunctional Tool Set App 20180056495 - CHENG; Yang-Fu | 2018-03-01 |
| Double-ended wrench set with identical torque holes Grant 9,862,080 - Cheng January 9, 2 | 2018-01-09 |
| Multipurpose tool Grant D801,139 - Cheng October 31, 2 | 2017-10-31 |
| Knife With Blade Provided With Engaging Groove To Facilitate Assembly And Disassembly App 20170266821 - CHENG; Yang-Fu | 2017-09-21 |
| Positioning control mechanism of expandable baton Grant 9,671,192 - Cheng June 6, 2 | 2017-06-06 |
| Knife Structure Capable Of Safely Replacing Blade App 20170151682 - CHENG; Yang-Fu | 2017-06-01 |
| Double-ended Wrench Set With Identical Torque Holes App 20170120430 - CHENG; Yang-Fu | 2017-05-04 |
| Knife Grant D768,456 - Cheng October 11, 2 | 2016-10-11 |
| Positioning Control Mechanism Of Expandable Baton App 20160169616 - CHENG; Yang-Fu | 2016-06-16 |
| Knife Grant D737,111 - Cheng August 25, 2 | 2015-08-25 |
| Knife Grant D734,117 - Cheng July 14, 2 | 2015-07-14 |
| Knife Grant D733,515 - Cheng July 7, 2 | 2015-07-07 |
| Expansion/collapse control mechanism for police baton Grant 8,956,235 - Cheng February 17, 2 | 2015-02-17 |
| Expansion/collapse Control Mechanism For Police Baton App 20140256452 - CHENG; Yang-Fu | 2014-09-11 |
| Knife Grant D706,605 - Cheng June 10, 2 | 2014-06-10 |
| Knife Grant D692,289 - Cheng October 29, 2 | 2013-10-29 |
| Knife Grant D688,933 - Cheng September 3, 2 | 2013-09-03 |
| Pick-resistant Handcuffs App 20130192314 - CHENG; Yang-Fu | 2013-08-01 |
| Folding knife with safety switch App 20120291292 - Cheng; Yang-Fu | 2012-11-22 |
| Folding knife with half handle App 20080172884 - Cheng; Yang-Fu | 2008-07-24 |
| Folding knife with blade replacement mechanism App 20080052913 - Cheng; Yang-Fu | 2008-03-06 |
| Folding knife assembly Grant 7,275,321 - Cheng October 2, 2 | 2007-10-02 |
| Folding Knife Assembly App 20070204468 - Cheng; Yang-Fu | 2007-09-06 |
| Folding knife with integral handle App 20070056169 - Cheng; Yang-Fu | 2007-03-15 |
| Single blade foldable knife Grant 6,848,184 - Cheng February 1, 2 | 2005-02-01 |
| Folding knife structure Grant 6,810,588 - Cheng November 2, 2 | 2004-11-02 |
| Foldable knife having a double blade Grant 6,804,887 - Cheng October 19, 2 | 2004-10-19 |
| Foldable knife having a single blade App 20040078981 - Cheng, Yang-Fu | 2004-04-29 |
| Foldable knife having a double blade App 20040078980 - Cheng, Yang-Fu | 2004-04-29 |
| Single blade foldable knife App 20040064953 - Cheng, Yang-Fu | 2004-04-08 |
| Foldable knife structure Grant 6,651,344 - Cheng November 25, 2 | 2003-11-25 |
| Foldable knife structure App 20030140500 - Cheng, Yang-Fu | 2003-07-31 |
| Truncheon App 20020187838 - Cheng, Yang-Fu | 2002-12-12 |
| Retractable knife with safety device App 20020157260 - Cheng, Yang-Fu | 2002-10-31 |
| Knife Grant D429,986 - Cheng August 29, 2 | 2000-08-29 |
| Retractable knife with single-edged blade Grant 6,101,722 - Cheng August 15, 2 | 2000-08-15 |
| Handle of folding knife Grant D419,852 - Cheng February 1, 2 | 2000-02-01 |
| Handle of folding knife Grant D419,851 - Cheng February 1, 2 | 2000-02-01 |
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