Inventor · disambiguated record
Mark E. Zirbel
Also filed as: ZIRBEL MARK · ZIRBEL MARK E
1 granted patent·1 pending application·6 citations·filing 2007–2007
28Inventor score
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2 records- 0159US8910434B2Pre-cast monolithic concrete stair with dual edge beams, method and moldZIRBEL MARK E·Filed 2007·Granted Dec 16, 2014·6 cites·6 claims
- 0247US2008092466A1Precast Concrete I-Beam Deck with Pre-Stressed Wire Strands as Reinforcing MaterialZMZ PRECAST INC·Filed 2007·Application pending·0 cites
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