Top Inventors at Gemological Institute Of America, Inc. (Gia) All Time
Showing 1–47 of 47 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Hiroshi Takahashi | 18 |
| 1 | Troy Blodgett | 18 |
| 3 | Marc Verboven | 14 |
| #4 | Wuyi Wang | 13 |
| #5 | Tsung-Han Tsai | 10 |
| #6 | Dirk Nuyts | 8 |
| #6 | Ronald Geurts | 8 |
| #8 | Sherman Gingerella | 7 |
| #9 | Matt Hall | 6 |
| #10 | James Shigley | 4 |
| #10 | Mary Johnson | 4 |
| #10 | Shane Elen | 4 |
| #13 | Barak Green | 3 |
| #13 | Christopher M. Breeding | 3 |
| #13 | Derwin Fritts | 3 |
| #13 | George W. Rhodes | 3 |
| #13 | Howard Pomerantz | 3 |
| #13 | Ren Lu | 3 |
| #13 | T. Scott Hemphill | 3 |
| #13 | Thomas Scott Hemphill | 3 |
| #13 | Tom Moses | 3 |
| #13 | Al Gilbertson | 3 |
| #23 | David Vern Nelson | 2 |
| #23 | David S. H. Rosenthal | 2 |
| #23 | Gilbert Norman Ravich | 2 |
| #23 | Ilene Reinitz | 2 |
| #23 | Lorne Loudin | 2 |
| #23 | Mehdi TOOSI | 2 |
| #23 | Troy Ardon | 2 |
| #23 | Yun Luo | 2 |
| #23 | Alvan Gilbertson | 2 |
| #32 | Brian Pear | 1 |
| #32 | Donna N. Dillenberger | 1 |
| #32 | Edward J. Maggiacomo | 1 |
| #32 | Jing Zeng | 1 |
| #32 | Jongsik Kim | 1 |
| #32 | Joseph W. Ligman | 1 |
| #32 | Joey McEnery | 1 |
| #32 | Jon Neal | 1 |
| #32 | Peter C. de Jong | 1 |
| #32 | Pradeep N. PERERA | 1 |
| #32 | Ron Geurts | 1 |
| #32 | Sally Catherine Magana | 1 |
| #32 | Sudhin Mandal | 1 |
| #32 | Thomas Picunko | 1 |
| #32 | Venkat K. Balagurusamy | 1 |
| #32 | Alex Balter | 1 |