Elroy E. Bourgraf
17Patents
12h-index
19Co-inventors
75Inventor score
Filing activity: Apr 23, 1976 → Feb 20, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4037871A | Multiple purpose ambulance cot with removable stretcher top | Human Necessities | 77 | Expired |
| US6381781B1 | Combination ambulance cot and chair | Human Necessities | 42 | Expired |
| US4604022A | Trunk loading device for business machines and the like | Performing Operations; Transporting | 34 | Expired |
| US5435027A | Roll-in cot with high ground clearance | Human Necessities | 33 | Expired |
| US7131151B2 | Multiple level roll-in cot | Human Necessities | 29 | Expired |
| US4369985A | One man cart for articles | Performing Operations; Transporting | 25 | Expired |
| US6681424B1 | Tilt-top mortuary cot | Human Necessities | 22 | Expired |
| US8104121B2 | Combination ambulance cot and chair | Human Necessities | 21 | Expired |
| US4251178A | Business machine cart with trunk loading attachment | Performing Operations; Transporting | 20 | Expired |
| US7581265B1 | Roll-in chair cot with three cot height positions | Human Necessities | 19 | Active |
| US8444195B2 | Combination cot loading and fastening system | Performing Operations; Transporting | 17 | Active |
| US8534732B2 | Combination cot loading and fastening system for loading and unloading a cot | Human Necessities | 12 | Active |
| US7287794B2 | Arresting device of a cot fastening system | Human Necessities | 11 | Expired |
| US6907632B2 | Tactical stretcher | Human Necessities | 9 | Expired |
| US7302718B2 | Multiple level roll-in cot | Human Necessities | 6 | Active |
| USD351018S | Bathtub for invalids | General | 3 | Expired |
| US8997283B2 | Work surface extensions for embalming tables and embalming tables including the same | Human Necessities | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.