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David J. Crorey — 39 Patents

UNUnknown: 8 patents #1,262 of 83,584Top 2%

INIsi Norgren: 5 patents #2 of 6Top 35%

NANorgren Automotive: 5 patents #1 of 9Top 15%

Clinton Township, MI: #3 of 448 inventorsTop 1%

Michigan: #1,422 of 86,293 inventorsTop 2%

Overall (All Time): #81,245 of 4,157,543Top 2%

39 Patents All Time

David J. Crorey has been granted 39 US patents while listed as an inventor at Unknown. The first was granted in 1985 and the most recent in July 2025. David J. Crorey ranks #81,245 of 4,157,543 US inventors in our database (top 2.0%). Patent records list David J. Crorey in Clinton Township, MI, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 39 patents

Patent #	Title	Co-Inventors	Date
D1081899	Mouse trap alert assembly	—	2025-07-01
9566535	Device and kit for making knotted lanyard accessories	—	2017-02-14
D748687	Friendship bracelet maker	—	2016-02-02
9227314	Device and kit for making images for jewelry and accessories	—	2016-01-05
9091003	Device and kit for making knotted lanyard accessories	—	2015-07-28
D707732	Lanyard maker	—	2014-06-24
8746753	Device and kit for making knotted string accessories	—	2014-06-10
D700220	Lanyard maker	—	2014-02-25
D685823	Bracelet maker	—	2013-07-09
D684608	Button maker	—	2013-06-18
D676880	Jewelry maker	—	2013-02-26
8371624	Device and kit for decorating barrettes	Julie Ann Karwowicz	2013-02-12
D667468	Friendship bracelet maker	—	2012-09-18
8172281	Device and kit for making knotted string accessories	—	2012-05-08
7946631	Device and kit for making knotted string accessories	—	2011-05-24
7926195	Flexible locating device	—	2011-04-19
D626574	Friendship bracelet maker	—	2010-11-02
D619150	Friendship bracelet maker	—	2010-07-06
7434327	Ceiling locating device	—	2008-10-14
6708421	Locating device	—	2004-03-23
6619872	Modular tooling coupling apparatus	Jeffery Dellach, John Walton	2003-09-16
6422549	Electric power operated clamp with spring lock	—	2002-07-23
6409411	Modular tooling coupling apparatus	—	2002-06-25
6386354	Harmonic lift and transfer system	—	2002-05-14
6199846	Electric power operated clamp with spring lock	—	2001-03-13