| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Packaging and shipping | |
| #3 | Furniture and games | |
| #4 | Machine tools | |
| #5 | Mechanical elements | |
| #6 | Transport | |
| #7 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Cleaning | |
| #3 | Household appliances | |
| #4 | Rolling metal | |
| #5 | Vehicle parts | |
| #6 | Pipes | |
| #7 | Ladders |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ketelsen Andrew J | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US1049871A | Garment hanger and stretcher. | |
| CA131238A | Method of finishing wooden faucets | |
| CA130108A | Step ladder | |
| US998531A | Faucet. | |
| US998530A | Garment hanger and stretcher. | |
| US968770A | Method of refining wooden faucets. | |
| US961357A | Step-ladder. | |
| US961356A | Sanitary automatic faucet. | |
| US807285A | Faucet. | |
| US775827A | Steam cooker and presser. | |
| CA82582A | Spout and faucet | |
| US714585A | Spout and faucet. | |
| CA69166A | Ore separating pan |