| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 11 | |
| #2 | United Kingdom | 6 | |
| #3 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Smoking accessories |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ropp Eugene | 12 |
| #2 | Eugene Ropp | 6 |
| Publication | Filing date | Title |
|---|---|---|
| GB191229488A | Improvements in Pipes for Smoking Tobacco. | |
| GB190918354A | Improvements in Pipes for Smoking Tobacco. | |
| GB190914664A | An Improved Joint for Tobacco Pipe-stems and Cigar and Cigarette Holders. | |
| GB190811993A | Improvements in and relating to Pipes for Smoking Tobacco. | |
| GB190324613A | Improvements in Pipes for Smoking Tobacco | |
| GB189420799A | Improvements in Tobacco-pipes. | |
| CA237582A | Tobacco pipe |