Derek J. Hengen

Follow

Person

Arcola Saskatchewan, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for removing sludge deposits from oil storage...
- Patent number 11,033,939
- Issue date Jun 15, 2021
- Derek J. Hengen
- B08 - CLEANING
Information Patent Grant
Method and apparatus for removing sludge deposits from oil storage...
- Patent number 10,569,314
- Issue date Feb 25, 2020
- Derek J. Hengen
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR REMOVING SLUDGE DEPOSITS FROM OIL STORAGE...
- Publication number 20200078838
- Publication date Mar 12, 2020
- Derek J. Hengen
- B08 - CLEANING
Information Patent Application
METHOD AND APPARATUS FOR REMOVING SLUDGE DEPOSITS FROM OIL STORAGE...
- Publication number 20160256904
- Publication date Sep 8, 2016
- Derek J. Hengen
- B08 - CLEANING