Derek E. Heath
41Patents
20h-index
15Co-inventors
82Inventor score
Filing activity: Sep 16, 1980 → May 8, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4934934A | Dental file/reamer instrument | Human Necessities | 99 | Expired |
| US5464362A | Endodontic instrument | Performing Operations; Transporting | 99 | Expired |
| US4538989A | Dental reamer | Human Necessities | 65 | Expired |
| US5380200A | Endodontic instrument of predetermined flexibility | Human Necessities | 64 | Expired |
| US5106298A | Endodontic dental instrument | Human Necessities | 62 | Expired |
| US5653590A | Kit of endodontic instruments and method of utilizing same | Human Necessities | 59 | Expired |
| US5628674A | Endodontic instrument | Performing Operations; Transporting | 54 | Expired |
| US5762541A | Endodontic instrument | Performing Operations; Transporting | 53 | Expired |
| US5605460A | Endodontic instrument and procedure | Human Necessities | 51 | Expired |
| US4602900A | Micro drill with modified drill point | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5527205A | Method of fabricating an endodontic instrument | Performing Operations; Transporting | 40 | Expired |
| US5941760A | Endodontic instrument | Performing Operations; Transporting | 37 | Expired |
| US5655950A | Method of fabricating an endodontic instrument | Performing Operations; Transporting | 36 | Expired |
| US5713736A | Endodontic dental instrument | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4871312A | Dental compactor instrument | Human Necessities | 34 | Expired |
| US5624259A | Dental hand instrument | Human Necessities | 33 | Expired |
| US5762497A | Endodontic dental instrument | Human Necessities | 31 | Expired |
| US5807106A | Endodontic instrument having depth calibrations and method of fabricating same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5302129A | Endodontic procedure and instrument | Human Necessities | 27 | Expired |
| US5860641A | Cutting board for food products | Emerging Cross-Sectional Technologies | 23 | Expired |
| USRE34439E | Dental compactor instrument | General | 19 | Expired |
| US5743734A | Portable holder for safely supporting and handling sharp dental instruments | Human Necessities | 16 | Expired |
| US8439682B1 | Set of endodontic instruments | Human Necessities | 8 | Active |
| USD505030S1 | Collapsible plant stand | General | 8 | Expired |
| US8911573B2 | Medical instrument with modified memory and flexibility properties and method | Chemistry; Metallurgy | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.