David D. SIMPSON

City:

Discovery Bay, California

Country:

United States

Published Applications:

Last publication date:

2018-07-19

Top Assignees for applications by David D. SIMPSON

The entities that hold a legal rights for patent applications filed by inventor SIMPSON David D.:

Q.E.D. ENVIRONMENTAL SYSTEMS, INC. 2 Dexter, MI United States

Recent patent applications by SIMPSON David D.

David D. SIMPSON from Discovery Bay, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2018-07-19

US20180202436A1

Mechanical engineering

Modular pneumatic well pump system

#2 | 2016-12-08

US20160356134A1

Fixed constructions

Landfill well liquid level control pump

InventorID:

1731207 ⎘