IP Library Assignment 020552/0479
Patent Assignment
Reel/Frame 020552/0479

Assignment of Assignor's Interest

Recorded: 2008-02-25 Pages: 3
Assignor
DIERKES, CARSTEN
Executed: 2008-02-25
Assignee
ROYAL ENVIRONMENTAL SYSTEMS, INC.
30630 FOREST BOULEVARD, STACY, MINNESOTA, 55079
Covered Property (1)
Filter Element for Water Loaded with Solid Particles and Dissolved Toxic Substances and Purification System Equipped with Said Filter Element Test System for Portable Analyzer
Application: 12/027,706 →
Publication: US 2008/0121594
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Security Interest Dec 22, 2009
From: ROYAL CONCRETE PIPE, INC.
To: MAKENS, DIANA
Reel/Frame 023699/0689 →
Assignment of Assignor's Interest Jul 12, 2012
From: DIERKES, CARSTEN
To: ROYAL CONCRETE PIPE, INC.
Reel/Frame 028549/0963 →