David J. Hoffmann
35Patents
15h-index
37Co-inventors
81Inventor score
Filing activity: Nov 11, 1977 → Nov 7, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9230419B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 52 | Active |
| US5622016A | Gutter and seal assembly | Performing Operations; Transporting | 48 | Expired |
| US6205721A | Sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | Performing Operations; Transporting | 44 | Expired |
| US5394662A | Seal assembly for a loading dock shelter | Fixed Constructions | 37 | Expired |
| US9633537B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 33 | Active |
| US9542824B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 32 | Active |
| US5675945A | Loading dock shelter with a rotatable seal | Fixed Constructions | 31 | Expired |
| US6233885A | Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | Performing Operations; Transporting | 28 | Expired |
| US4161088A | Pipe-and-ball truss array | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4211044A | Tube space frame system | Fixed Constructions | 28 | Expired |
| US9547969B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 24 | Active |
| US5473846A | Loading dock shelter with a rotatable seal | Fixed Constructions | 22 | Expired |
| US8307588B2 | Flexible structures for use with dock seals and shelters | Fixed Constructions | 19 | Active |
| US9607496B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 19 | Active |
| US7757442B2 | Flexible structures for use with dock seals and shelters | Fixed Constructions | 17 | Expired |
| US8839842B2 | Insulated washdown flexible walls and curtains | Emerging Cross-Sectional Technologies | 14 | Active |
| US5606854A | Exhaust filter | Emerging Cross-Sectional Technologies | 14 | Expired |
| US9672713B2 | Methods and apparatus to detect and warn proximate entities of interest | Performing Operations; Transporting | 11 | Active |
| US6550191B2 | Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like | Performing Operations; Transporting | 7 | Expired |
| US5005664A | Vehicle locking system | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5704500A | Dispensing-sealing arrangement for a container | Human Necessities | 6 | Expired |
| US10544060B2 | Composition for metakaolin construction material, related method for manufacturing said composition, and use for producing construction elements | Emerging Cross-Sectional Technologies | 5 | Active |
| US8353136B2 | Low profile support panel for a dock seal | Performing Operations; Transporting | 4 | Active |
| US7246467B1 | Heat shielded dock pad | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9003724B2 | Weather barrier apparatuses for sealing or sheltering vehicles at loading docks | Fixed Constructions | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.