| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Belgium | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Israel | 1 | |
| #9 | Republic of Korea | 1 | |
| #10 | Sweden | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Nails | |
| #3 | Measuring force, work and fluid pressure |
| # | Name | Total Patents |
|---|---|---|
| #1 | Popenoe C H | 2 |
| #2 | Popenoe C | 2 |
| #3 | Popenoe Charles H | 1 |
| #4 | Charles H Popenoe | 1 |
| #5 | Popenol C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR790000473B1 | Opti-mechanical stress-strain indicator |