Inventor

KIRK DONALD

US3 patents

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

AKRO FIREGUARD PROD INC

1 patent

US5596029AJan 21, 1997

Intumescent composition of the two-component type

AKRO FIREGUARD PROD INC33 citations84

FIRESTONE BUILDING PROD CO LLC

1 patent

US11065841B2Jul 20, 2021

Asphaltic sheet materials including expandable graphite

FIRESTONE BUILDING PROD CO LLC0 citations61

KIRK DONALD

1 patent

US4060217ANov 29, 1977

Concrete forms for building a concrete spillway

KIRK DONALD5 citations51