| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 9 | |
| #2 | United States | 5 | |
| #3 | Switzerland | 2 | |
| #4 | Germany | 2 | |
| #5 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Agriculture | |
| #3 | Machines | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Wheelchairs and sledges | |
| #2 | Horticulture | |
| #3 | Motor vehicles | |
| #4 | Bolts for doors or windows | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lamb Robert M | 15 |
| #2 | M Lamb Robert | 2 |
| #3 | Robert M Lamb | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US4512104A | Apparatus for harvesting maple tree sap | |
| US3226883A | Flexible maple sap collecting tubing | |
| US3204370A | Maple sap spile | |
| US3156069A | Maple sap collecting system | |
| US1985176A | Multiple bolt lock | |
| CA831226A | Light-transparent infrared-absorbing maple sap flexible plastic tubing | |
| CA718168A | Maple sap spile | |
| CA865595A | Endless track vehicle | |
| CA874870A | Turnable runner steered vehicle | |
| CA864997A | Snowmobile bogie wheel | |
| CA798142A | Drinking cup | |
| CA731871A | Flexible maple sap collecting tubing | |
| CA724365A | Maple sap collecting system |