| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 53 | |
| #2 | United Kingdom | 10 | |
| #3 | France | 8 | |
| #4 | Canada | 5 | |
| #5 | Germany | 5 | |
| #6 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Materials and metallurgy | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Shafts | |
| #5 | Pistons and sealings | |
| #6 | Metal-working | |
| #7 | Alloys | |
| #8 | Metal tempering | |
| #9 | Pipes | |
| #10 | Making forged metal products |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dunn George E | 26 |
| #2 | Hans Wollner | 11 |
| #3 | Warner Archibald A | 7 |
| #4 | Frank Ketcham | 5 |
| #5 | Ransom Richard B | 4 |
| #6 | Goddard Paul B | 3 |
| #7 | Yeomans Lucien I | 2 |
| #8 | Kishline Floyd F | 1 |
| #9 | Co Inc The Universal Products | 1 |
| #10 | Miquelon Pantaleon E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2722115A | Universal joint | |
| US2672740A | Constant velocity universal joint | |
| US2625018A | Universal joint | |
| US2636362A | Universal joint | |
| US2442640A | Method of installing boots on universal joints | |
| US2559563A | Constant velocity joint | |
| US2509969A | Constant velocity joint | |
| US2395962A | Constant velocity joint | |
| US2427449A | Universal joint | |
| US2485868A | Constant velocity joint | |
| US2399293A | Constant velocity joint | |
| US2396750A | Universal joint | |
| US2377408A | Universal joint | |
| US2377451A | Universal joint | |
| US2360786A | Universal joint assembly | |
| US2370023A | Universal joint | |
| US2353300A | Universal joint | |
| US2338169A | Universal joint seal | |
| US2270281A | Universal joint | |
| GB547956A | Improvements in or relating to universal joints |