Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7967595 | Machine and method for reshaping multiple plastic bottles into rock shapes | Janet Ellen Schofield | 2011-06-28 |
| 7866019 | Method of making simulated landscaping rocks and edging blocks from expended plastic bottles | Janet Ellen Schofield | 2011-01-11 |
| 7810708 | Combination mailbox housing and pedestal-planter assembly made of recycled materials | Janet Ellen Schofield | 2010-10-12 |
| 7736703 | Method of making an artificial hollow core boulder filled with non-biodegradable waste | Janet Ellen Schofield | 2010-06-15 |
| 7600991 | Plastic rock making machine | Janet Ellen Schofield | 2009-10-13 |
| 7115178 | Method of making plastic rocks | Janet Ellen Schofield | 2006-10-03 |
| 5733069 | Loose roof plate retensioning device | — | 1998-03-31 |