John Spangler
6Patents
3h-index
8Co-inventors
46Inventor score
Filing activity: Jul 10, 2006 → Nov 3, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD575734S1 | Guardian battery door | General | 10 | Expired |
| USD1007785S1 | Collar receiver | General | 8 | Active |
| USD986512S1 | Pet boundary collar receiver | General | 6 | Active |
| USD986753S1 | Pet boundary transmitter | General | 2 | Active |
| USD985407S1 | Pet boundary control panel | General | 1 | Active |
| USD1080915S1 | Pet door | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.