| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Spain | 5 | |
| #2 | Australia | 2 | |
| #3 | Belgium | 2 | |
| #4 | Canada | 2 | |
| #5 | Germany | 2 | |
| #6 | Denmark | 2 | |
| #7 | Finland | 2 | |
| #8 | France | 2 | |
| #9 | United Kingdom | 2 | |
| #10 | Israel | 2 | |
| #11 | Italy | 2 | |
| #12 | Japan | 2 | |
| #13 | Netherlands | 2 | |
| #14 | Norway | 2 | |
| #15 | New Zealand | 2 | |
| #16 | Sweden | 2 | |
| #17 | Switzerland | 1 | |
| #18 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Implantable devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rudel Harry W | 11 |
| #2 | Rudel H W | 5 |
| #3 | Harii Daburiyu Ruuderu | 2 |
| #4 | Rudel Harry W Dr | 2 |
| #5 | Rudel H | 2 |
| #6 | Rudel Harry | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IL59417A | Disposable female contraceptive | |
| DE2945447A1 | Contraceptive device for insertion in vaginal dome - has second portion attached to first and shutting cervical orifice | |
| US4300544A | Disposable female contraceptive | |
| NZ188659A | Contraceptive device |