| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Hinges for doors or windows | |
| #3 | Lifting and pushing | |
| #4 | Indexing scheme relating to hinges | |
| #5 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Burkholder John H | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US1004741A | Lift-jack for automobiles. | |
| CA121673A | Door hanger | |
| US876621A | Door-hanger. | |
| US850209A | Lifting-jack. | |
| US861083A | Door-hanger. | |
| US841117A | Door-hanger. | |
| US848629A | Pump. | |
| CA83940A | Door hanger | |
| US741221A | Door-hanger. | |
| CA72154A | Door hanger | |
| US674996A | Door-hanger. | |
| US887734A | Lifting-jack. |