Richard J. Ericson
55Patents
14h-index
78Co-inventors
87Inventor score
Filing activity: Aug 20, 1981 → Jul 16, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5052523A | Elevator car-mounted govenor system | Performing Operations; Transporting | 31 | Expired |
| US4462193A | Elevator cab | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4430835A | Elevator cab | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6138799A | Belt-climbing elevator having drive in counterweight | Performing Operations; Transporting | 22 | Expired |
| US6364062B1 | Linear tracking mechanism for elevator rope | Performing Operations; Transporting | 20 | Expired |
| US5002158A | Elevator safety | Performing Operations; Transporting | 18 | Expired |
| US7410033B2 | Electrical connector and restraining device for use with elevator belts | Electricity | 18 | Expired |
| US6405833B1 | Flexible flat rope sheave assembly with separate shoulder and flange surfaces having varying friction properties | Performing Operations; Transporting | 18 | Expired |
| US5669469A | Integrated elevator drive machine and brake assembly | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5226508A | Disc brake for elevator drive sheave | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5819879A | Safety brake | Performing Operations; Transporting | 15 | Expired |
| US5495919A | Safety brake apparatus for an elevator car or counterweight | Performing Operations; Transporting | 15 | Expired |
| US5886308A | Rope speed monitoring assembly and method | Performing Operations; Transporting | 14 | Expired |
| US6193018A | Belt-climbing elevator having drive in counterweight | Performing Operations; Transporting | 14 | Expired |
| US5156239A | Disc brake/load weighing assembly for elevator drive sheave | Performing Operations; Transporting | 13 | Expired |
| US6256841A | Wedge clamp type termination for elevator tension member | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6860367B1 | Elevator system having drive motor located below the elevator car | Performing Operations; Transporting | 13 | Expired |
| US6061879A | Epoxy type termination for flexible flat termination member | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5201821A | Disc brake elevator drive sheave | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5799755A | Linear motor transfer of cab horizontally between elevator and bogey platforms | Electricity | 11 | Expired |
| US5564529A | Elevator car frame and platform assembly | Performing Operations; Transporting | 11 | Expired |
| US5931263A | Quasi-elliptical bidirectional progressive safety | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6357085B2 | Wedge clamp type termination for elevator tension member | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6484368B1 | Flexible flat tension member termination device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6994487B2 | Elevator load bearing termination assembly | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.