Anna E. Hagstrom
3Patents
2h-index
12Co-inventors
41Inventor score
Filing activity: Oct 9, 1998 → Aug 12, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8704668B1 | System for monitoring and alerting based on animal behavior in designated environments | Human Necessities | 16 | Active |
| US6956497B1 | Method and apparatus for sending presence messages | Electricity | 15 | Expired |
| US8509137B2 | Method and apparatus for sending presence messages | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.