Inventor

SHAFER DAVID L

US3 patents

⚠️ This page may combine multiple inventors who share the name “SHAFER DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MAGIC CIRCLE CORP

2 patents

US6370855B1Apr 16, 2002

Grass blower for lawn mower

MAGIC CIRCLE CORP14 citations78

US6457560B1Oct 1, 2002

Gear box oil pumping system

MAGIC CIRCLE CORP13 citations67

SHELL OIL CO

1 patent

USH1735HJun 2, 1998

EPDM roofing membrane adhesive system based on hydrogenated styrene-diene-styrene block copolymers

SHELL OIL CO13 citations70