HARSCO TECHNOLOGIES LLC
89Patents
58Active
89Granted
51Portfolio score
Filing activity: Jul 14, 1993 → May 2, 2023 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6695277B1 | Modular form tube and clamp system | Fixed Constructions | 37 | Expired |
| US6515249B1 | Method of railroad rail repair | Performing Operations; Transporting | 25 | Expired |
| US5842500A | Overfill preventing valve | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5868078A | Road and rail vehicle using rail wheel drive and apparatus | Performing Operations; Transporting | 19 | Expired |
| US6595140B1 | Railway tie plate insertion apparatus and method | Fixed Constructions | 17 | Expired |
| US10796192B2 | Track feature detection using machine vision | Electricity | 16 | Active |
| US7114342B2 | Pressure management system for liquefied natural gas vehicle fuel tanks | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US7347613B2 | Apparatus for continuous blending | Performing Operations; Transporting | 14 | Expired |
| US6089162A | Rail vehicle for tie loading and unloading | Fixed Constructions | 13 | Expired |
| US5970977A | Demand regulator having adjustable air flow | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6276143A | External pressure building circuit for rapid discharge cryogenic liquid cylinder | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6662729B1 | Rail anchor spreader | Fixed Constructions | 11 | Expired |
| US9902411B2 | Work block encroachment warning system | Performing Operations; Transporting | 11 | Active |
| US6957661B1 | Valve with pressurization rate reduction device | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6170401A | Rail vehicle for use in the collection and distribution of railroad crossties | Fixed Constructions | 10 | Expired |
| US6087013A | Glass coated high strength steel | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6386114B1 | Single shaft tamper with reciprocating rotational output | Fixed Constructions | 6 | Expired |
| US7258069B1 | Laterally adjustable nipper-clipper assembly and method of operating a laterally adjustable nipper-clipper assembly | Fixed Constructions | 6 | Expired |
| USD820299S1 | Display screen with graphical user interface for a boiler | General | 6 | Active |
| US6901973B1 | Pressurized liquid natural gas filling system and associated method | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6473940B1 | Knob for a post valve | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9850624B2 | Mobile automated tie replacement system | Fixed Constructions | 5 | Active |
| USD806728S1 | Display screen with graphical user interface for a boiler | General | 5 | Active |
| US6598537B2 | Tie plugger riding station and associated method | Fixed Constructions | 4 | Expired |
| US8245646B1 | Articulated rail vehicle | Fixed Constructions | 3 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.