| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Belgium | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Furniture and games | |
| #3 | Medical technology | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Footwear features | |
| #2 | Chairs and beds | |
| #3 | Containers for goods storage | |
| #4 | Operating tables | |
| #5 | Hats |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lipfert Donald Ernest | 3 |
| #2 | Lipfert Donald E | 3 |
| #3 | Lipfert D E | 1 |
| #4 | Donald Ernest Lipfert | 1 |
| #5 | Lippert D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1092616A | Cushioning material construction | |
| US4032127A | Protective head gear and body equipment | |
| GB1321826A | Mechanical support system with lever connected load support members |