DH

David P. Hartrick

LE Lacks Enterprises: 3 patents #13 of 54Top 25%
LI Lacks Industries: 1 patents #13 of 25Top 55%
📍 Lowell, MI: #26 of 121 inventorsTop 25%
🗺 Michigan: #22,048 of 86,293 inventorsTop 30%
Overall (All Time): #1,216,449 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8632864 Decorative surface finish and method of forming same Ling Hao, Lee A. Chase, Alan Fanta, Daniel W. Irvine, Yong Zhang +1 more 2014-01-21
7597935 Process for preparing chrome surface for coating Qihua Xu, Ling Hao, Lawrence P. Donovan, III, Roger James Timmer, Lee A. Chase +1 more 2009-10-06
7097749 Plating rack with rotatable insert Lawrence P. Donovan, III, John A. Piselli, Brian Ellison 2006-08-29
6306275 Method for controlling organic micelle size in nickel-plating solution Lawrence P. Donovan, III, Roger James Timmer 2001-10-23