John F. Dobrez

Follow

Person

Flossmoor, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods for removing acrylic-based polymer coatings
- Patent number 5,609,693
- Issue date Mar 11, 1997
- Dober Chemical Corp.
- John F. Dobrez
- B08 - CLEANING
Information Patent Grant
Coolant filter composition
- Patent number 4,980,075
- Issue date Dec 25, 1990
- Dober Chemical Corporation
- John F. Dobrez
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Coolant filter manufacture and composition for use in same
- Patent number 4,842,731
- Issue date Jun 27, 1989
- Dober Chemical Corporation
- John F. Dobrez
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Metal-working emulsion reclaiming process
- Patent number 4,357,243
- Issue date Nov 2, 1982
- Dober Chemical Corporation
- John F. Dobrez
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...