Robert C. Henschel
22Patents
6h-index
20Co-inventors
69Inventor score
Filing activity: Feb 14, 1974 → Jul 31, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6851477B2 | Curved flapper with angle variant seat for a subsurface safety valve | Fixed Constructions | 15 | Expired |
| US4626309A | Selective bonding interconnection mask | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7798235B2 | Safety valve torsional spring assembly and method | Emerging Cross-Sectional Technologies | 11 | Active |
| US7841416B2 | Method and apparatus for retaining a soft seal in an integrated flapper mount, hard seat, spring housing surface controlled subsurface safety valve | Fixed Constructions | 9 | Active |
| US10724332B2 | Low-power electric safety valve | Fixed Constructions | 7 | Active |
| US9441456B2 | Deep set subsurface safety valve with a micro piston latching mechanism | Fixed Constructions | 6 | Active |
| US9624755B2 | Wireline retrievable injection valve assembly with a variable orifice | Fixed Constructions | 6 | Active |
| US9334709B2 | Tubing retrievable injection valve assembly | Fixed Constructions | 6 | Active |
| US8960298B2 | Deep set subsurface safety system | Fixed Constructions | 6 | Active |
| US9638006B2 | Safety system for wells having a cable deployed electronic submersible pump | Fixed Constructions | 6 | Active |
| US9217312B2 | Wireline retrievable injection valve assembly with a variable orifice | Fixed Constructions | 5 | Active |
| US10100611B2 | Deep set subsurface safety valve with a micro piston latching mechanism | Fixed Constructions | 4 | Active |
| US9771777B2 | Tubing retrievable injection valve assembly | Fixed Constructions | 4 | Active |
| US6467841B1 | Lumbar support | Human Necessities | 4 | Expired |
| US10030476B2 | Tubing retrievable injection valve assembly | Fixed Constructions | 4 | Active |
| US9103184B2 | Inflow control valve | Fixed Constructions | 4 | Active |
| US10053936B2 | Thermal compensating tubing anchor for a pumpjack well | Fixed Constructions | 4 | Active |
| US3948090A | Method of measuring dimensional variations in a workpiece | Physics | 2 | Expired |
| US8701781B2 | Subsurface safety valve flapper | Fixed Constructions | 2 | Active |
| US9999803B1 | Orthopedic hand linear and rotation | Human Necessities | 2 | Active |
| US10525303B2 | Orthopedic hand linear and rotation | Human Necessities | 0 | Active |
| US10378312B2 | Tubing retrievable injection valve assembly | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.