FL

Frederick E. Lederman

General Motors: 13 patents #1 of 586Top 1%
📍 Sandusky, OH: #1 of 6 inventorsTop 20%
🗺 Ohio: #2 of 3,574 inventorsTop 1%
Overall (1989): #185 of 140,708Top 1%
13
Patents 1989

Issued Patents 1989

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
4874069 Roller clutch with improved lubrication 1989-10-17
4850464 Roller clutch energizing spring with protected pleats John S. Doller 1989-07-25
4850463 Temperature compensating roller clutch cage 1989-07-25
4850462 Roller clutch spring with compact and stable latch 1989-07-25
4838398 Metal roller clutch cage 1989-06-13
4836347 Roller clutch with roller spin control Albert D. Johnston 1989-06-06
4834227 Integrally molded roller clutch cage and energizing spring 1989-05-30
4830157 Temperature compensating roller clutch and cage 1989-05-16
4828086 Reduced wear roller clutch 1989-05-09
4828085 Roller clutch with self aligning energizing springs 1989-05-09
4822183 Thrust ball bearing with improved sealing 1989-04-18
4821856 Overrunning roller clutch with roller control cars 1989-04-18
4815577 Roller clutch with protected and guided energizing springs 1989-03-28