| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Materials and metallurgy | |
| #3 | Measurement | |
| #4 | Chemical engineering | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Materials for miscellaneous applications | |
| #2 | Building materials | |
| #3 | Analysing materials | |
| #4 | Preparing clay | |
| #5 | Mixing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spangle Lloyd | 8 |
| #2 | Moran Landreth L | 7 |
| #3 | Spangle Lloyd Byron | 3 |
| #4 | Pence Allen A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA2777151A1 | Use of seeds as a cement set retarder | |
| US7765883B1 | Dry blending aid | |
| US7670994B1 | Method for treating oil and gas wells | |
| WO2007143581A2 | Cement blend |