| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Philippines | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Pistons and sealings | |
| #3 | Servomotors | |
| #4 | Springs | |
| #5 | Vehicle servicing | |
| #6 | Pipes | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Der Blom Nicolaas | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2009272262A1 | Piston-chamber combination | |
| US2008006147A1 | Device comprising a combination of a chamber and a piston |