| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 4 | |
| #3 | France | 4 | |
| #4 | Belgium | 3 | |
| #5 | United Kingdom | 3 | |
| #6 | Austria | 2 | |
| #7 | Germany | 1 | |
| #8 | Greece | 1 | |
| #9 | Ireland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Footwear features |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hack Nathan | 8 |
| #2 | Hack Morton | 6 |
| #3 | Leonard Hack | 4 |
| #4 | Morton Hack | 4 |
| #5 | Hack Leonard | 3 |
| #6 | Nathan Hack | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US3444632A | Resilient shoe sole | |
| GB1130806A | Shoe heel | |
| US3299544A | Shoe heel | |
| US2941317A | Resilient shoe heel | |
| US2941316A | Resilient shoe tap | |
| FR75740E | Soft and elastic sole for shoes | |
| US2930149A | Resilient shoe sole and wedge construction | |
| US2937462A | Resilient shoe taps and heels | |
| FR1207702A | Elastic soles for shoes | |
| IE23304L | Shoe soles | |
| FR1195145A | Elastic shoe soles | |
| GB885407A | Resilient shoe soles | |
| US2833057A | Resilient shoe soles | |
| GB769945A | Resilient shoe soles | |
| CA655120A | Resilient shoe sole and wedge construction | |
| CA532830A | Resilient shoe soles | |
| CA780607A | Shoe heel | |
| CA609649A | Resilient shoe soles |