Corey Hoffman
27Patents
14h-index
23Co-inventors
77Inventor score
Filing activity: Oct 2, 1999 → Sep 11, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6427776B1 | Sand removal and device retrieval tool | Fixed Constructions | 107 | Expired |
| US6945330B2 | Slickline power control interface | Fixed Constructions | 54 | Expired |
| US6695057B2 | Fracturing port collar for wellbore pack-off system, and method for using same | Fixed Constructions | 54 | Expired |
| US6253856A | Pack-off system | Fixed Constructions | 51 | Expired |
| US7152680B2 | Slickline power control interface | Fixed Constructions | 45 | Expired |
| US6886631B2 | Inflation tool with real-time temperature and pressure probes | Fixed Constructions | 42 | Expired |
| US6257339A | Packer system | Fixed Constructions | 42 | Expired |
| US7073580B2 | Inflation tool with real-time temperature and pressure probes | Fixed Constructions | 38 | Expired |
| US6668930B2 | Method for installing an expandable coiled tubing patch | Fixed Constructions | 33 | Expired |
| US9488024B2 | Annulus cementing tool for subsea abandonment operation | Fixed Constructions | 31 | Active |
| US6779601B2 | Inflatable packing element | Fixed Constructions | 30 | Expired |
| US7004248B2 | High expansion non-elastomeric straddle tool | Fixed Constructions | 18 | Expired |
| US9587466B2 | Cementing system for riserless abandonment operation | Fixed Constructions | 16 | Active |
| US6568475B1 | Isolation container for a downhole electric pump | Electricity | 15 | Expired |
| US6978841B2 | Sand removal and device retrieval tool | Fixed Constructions | 13 | Expired |
| US7114558B2 | Filtered actuator port for hydraulically actuated downhole tools | Fixed Constructions | 11 | Expired |
| US6405803B1 | Differential flow control valve | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8857520B2 | Emergency disconnect system for riserless subsea well intervention system | Fixed Constructions | 9 | Active |
| US7172028B2 | Reciprocating slickline pump | Fixed Constructions | 9 | Expired |
| US7128157B2 | Method and apparatus for treating a well | Fixed Constructions | 7 | Expired |
| US6640904B2 | Sand removal and device retrieval tool | Fixed Constructions | 6 | Expired |
| US6736214B2 | Running tool and wellbore component assembly | Fixed Constructions | 6 | Expired |
| US6719056B2 | Sand removal method | Fixed Constructions | 5 | Expired |
| US8240387B2 | Casing annulus tester for diagnostics and testing of a wellbore | Fixed Constructions | 4 | Active |
| US6962204B2 | Isolation container for a downhole electric pump | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.