Hermann Ortwein
14Patents
8h-index
13Co-inventors
69Inventor score
Filing activity: Jun 28, 1979 → Dec 30, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5173012A | Ground-borne noise and vibration damping | Fixed Constructions | 135 | Expired |
| US4500037A | Railway road bed | Fixed Constructions | 24 | Expired |
| US4266719A | Track mounting assembly and sound-damping system therefore | Fixed Constructions | 16 | Expired |
| US4720043A | Resilient ballast underlayment mat including nonwoven fiber fleece layers | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4775103A | Elastically mounted rails for vehicle tracks | Fixed Constructions | 14 | Expired |
| US4696429A | Elastic mat for a ballast bed underlayment | Fixed Constructions | 14 | Expired |
| US6293473A | Railroad substructure | Fixed Constructions | 12 | Expired |
| US5060856A | Sound-damping mat, especially for a ballast bed | Fixed Constructions | 9 | Expired |
| US4527736A | Elastomeric railway-rail mount | Fixed Constructions | 7 | Expired |
| US6079631A | Rail-fastening assembly | Fixed Constructions | 6 | Expired |
| US4723706A | Rail support | Fixed Constructions | 5 | Expired |
| US5788153A | Infrastructure for railway tracks | Fixed Constructions | 4 | Expired |
| US4637646A | Wheel set for rail vehicles | Performing Operations; Transporting | 3 | Expired |
| US4577801A | Elastomeric mounting for railway rail with differently angled flanks | Fixed Constructions | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.