🔗 Permalink

Inventor profile of:

John P. Callahan

City:

Worcester, Massachusetts

Country:

United States

Published Applications:

1

Last publication date:

2020-07-16

Recent patent applications by Callahan John P.

John P. Callahan from Worcester, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2020-07-16

US20200224579A1

Mechanical engineering

Portable exhaust removal system

InventorID:

2794017 ⎘