Dennis E. Kroll
8Patents
7h-index
10Co-inventors
56Inventor score
Filing activity: May 8, 1998 → Oct 24, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6167963A | Removable non-metallic bridge plug or packer | Fixed Constructions | 194 | Expired |
| US8016295B2 | Helical backup element | Fixed Constructions | 56 | Active |
| US8393388B2 | Retractable petal collet backup for a subterranean seal | Fixed Constructions | 14 | Active |
| US8322413B2 | Twin latch wireline retrieval tool | Fixed Constructions | 13 | Active |
| US6651738B1 | Downhole isolation device with retained valve member | Fixed Constructions | 13 | Expired |
| US7806177B2 | Retractable downhole backup assembly for circumferential seal support | Fixed Constructions | 10 | Active |
| US8307891B2 | Retractable downhole backup assembly for circumferential seal support | Fixed Constructions | 9 | Active |
| US8919452B2 | Casing spears and related systems and methods | Human Necessities | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.