David Stoller

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Burlington, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for destructive load testing
- Patent number 8,474,325
- Issue date Jul 2, 2013
- Hawkeye Concrete Products Co.
- Ronald D. Schmidgall
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for protecting lined concrete pipe during the...
- Patent number 7,832,703
- Issue date Nov 16, 2010
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Vibration system for concrete pipe making machines
- Patent number 7,083,406
- Issue date Aug 1, 2006
- Hawkeye Concrete Products Co.
- David Stoller
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus and method for removing joint rings from cured concrete p...
- Patent number 6,817,589
- Issue date Nov 16, 2004
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR PROTECTING LINED CONCRETE PIPE DURING THE...
- Publication number 20100178373
- Publication date Jul 15, 2010
- Hawkeye Concrete Products Co.
- JON A. SCHMIDGALL
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
VIBRATION SYSTEM FOR CONCRETE PIPE MAKING MACHINES
- Publication number 20050058740
- Publication date Mar 17, 2005
- David Stoller
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Apparatus and method for removing joint rings from cured concrete p...
- Publication number 20030155671
- Publication date Aug 21, 2003
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE