Ratnik Industries, Inc.
12Patents
1Active
12Granted
33Portfolio score
Filing activity: May 16, 1983 → Jan 18, 2010 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5154348A | Snow-gun oscillation control apparatus | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5699961A | Fanless snow gun | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4989830A | Motorized hydrant | Fixed Constructions | 27 | Expired |
| US5031832A | Automated snow-making system | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5884841A | Method and apparatus for making snow | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6793148B2 | Water-only method and apparatus for making snow | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5400965A | Automated snow-making system | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5547164A | Motorized water hydrant with manual override | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4511083A | Self-regulating hydrant | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7131598B2 | Snow-gun | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| USD329023S | Snow-making console | General | 1 | Expired |
| US8376245B2 | Snow making apparatus and method | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.