Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992837 | Techniques and tools for assembling and disassembling compactable molds and forming building blocks | Rudolf Alfred Heijden, Richard William Kay, George Briggs Middleton, Robert H. Nippert | 2011-08-09 |
| 7988123 | Compactable mold for forming building blocks | Laurian Dobrota, Rudolf Alfred Heijden, Richard William Kay, Robert H. Nippert | 2011-08-02 |