David J. Luzenske

SD Steelcase Development: 2 patents #194 of 472Top 45%

📍 Kalamazoo, MI: #581 of 1,283 inventorsTop 50%

🗺 Michigan: #35,034 of 86,293 inventorsTop 45%

Overall (All Time): #2,216,245 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
D460274	Screen frame	William Bennie	2002-07-16
D449169	Screen	William Bennie	2001-10-16