GM

Glenn S. Metzelfeld

HB Hayes Brake: 4 patents #4 of 16Top 25%
HB Hayes Industrial Brake: 3 patents #6 of 12Top 50%
📍 Brookfield, WI: #136 of 745 inventorsTop 20%
🗺 Wisconsin: #6,850 of 40,088 inventorsTop 20%
Overall (All Time): #762,740 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6135248 Brake disk Korey Johnson, George H. Hinkens 2000-10-24
D413092 Disk brake rotor Korey Johnson, George H. Hinkens 1999-08-24
D413093 Disk brake rotor Korey Johnson, George H. Hinkens 1999-08-24
5848674 Brake disk Korey Johnson, George H. Hinkens 1998-12-15
5033592 Spring applied/pressure release emergency brake actuator 1991-07-23
4878346 Tab-aligned replaceable cartridge for master cylinder James A. V. Buckely, Donald D. Brown 1989-11-07
4878567 Brake/locking differential James A. Buckley, Donald D. Brown 1989-11-07