Top Inventors at Serva Group All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Thomas E. Allen | 4 |
| 2 | Bill Ladd | 2 |
| 3 | Carl Stephen Lammons | 2 |
| #4 | Johnnie B. Maschek, Jr. | 2 |
| #5 | Tang Jun | 2 |
| #6 | Wang Cheng Cai | 2 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Thomas E. Allen | 4 |
| 2 | Bill Ladd | 2 |
| 3 | Carl Stephen Lammons | 2 |
| #4 | Johnnie B. Maschek, Jr. | 2 |
| #5 | Tang Jun | 2 |
| #6 | Wang Cheng Cai | 2 |