| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United Kingdom | 4 | |
| #3 | France | 2 | |
| #4 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping | |
| #3 | Electrical machinery and energy | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Transport or storage devices | |
| #3 | Shafts | |
| #4 | Belts or cables for driving | |
| #5 | Installation of electric cables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Biegel Oskar | 5 |
| #2 | Malter Felix | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB960436A | Improvements in couplings for pipes, rods, ropes and electric cables | |
| GB770413A | Improvements in or relating to pipe elbows for pneumatic and hydraulic conveyor pipelines | |
| GB770414A | Improvements in or relating to pipe elbows for pneumatic and hydraulic conveyor pipelines | |
| GB714028A | Improvements relating to hose couplings | |
| CA591813A | Clip for hose coupling |