Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8646223 | Concrete building wall having cast-in-place window wells | Roman Brewka, Julious Durwood Kaeding, Ronald A. Ward, Larry D. Austin, Leslie E. Howard | 2014-02-11 |
| 7980044 | Method for forming cast-in-place concrete window wells | Roman Brewka, Julious Durwood Kaeding, Ronald A. Ward, Larry D. Austin, Leslie E. Howard | 2011-07-19 |