Peter Spiess
15Patents
6h-index
10Co-inventors
63Inventor score
Filing activity: Dec 9, 1977 → Oct 24, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7182174B2 | Method and system for emergency evacuation of building occupants and a method for modernization of an existing building with said system | Performing Operations; Transporting | 49 | Expired |
| US5584142A | Threshold profile member for the guidance of door leaves | Fixed Constructions | 40 | Expired |
| US5869794A | Method and device for increased safety in elevators | Performing Operations; Transporting | 19 | Expired |
| US5616895A | Door safety circuit for monitoring of story doors in lift installations | Performing Operations; Transporting | 14 | Expired |
| US7810544B2 | Door system | Fixed Constructions | 11 | Active |
| US5575357A | Entraining apparatus for elevator doors | Performing Operations; Transporting | 8 | Expired |
| US5655626A | Roller guide for a sliding elevator door | Fixed Constructions | 5 | Expired |
| US5544720A | Entraining and unlatching apparatus for elevator doors | Performing Operations; Transporting | 5 | Expired |
| US5667039A | Rollers for the roller guide of sliding elevator doors | Fixed Constructions | 4 | Expired |
| US4349759A | Commutator for electrical machines | Electricity | 4 | Expired |
| US7506727B2 | Door with sliding door leaf and with guide means | Fixed Constructions | 3 | Expired |
| US6668494B2 | Door frame at elevator shaft doors | Performing Operations; Transporting | 1 | Expired |
| US7617860B2 | Elevator door system | Performing Operations; Transporting | 1 | Active |
| US7445089B2 | Sealing device with magnetically movable door seal for a closable door leaf of an elevator installation | Performing Operations; Transporting | 1 | Expired |
| US7232012B2 | Elevator shaft door | Fixed Constructions | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.