Roberts Manufacturing LLC
14Patents
5Active
14Granted
39Portfolio score
Filing activity: Aug 15, 1975 → Aug 6, 2020
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4144822A | Folding leg mechanism | Human Necessities | 55 | Expired |
| US4854293A | Archery bowstring drawback and release device | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US4961265A | Sight mounting device for archery bows | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4168671A | Work table for open-arm sewing machines | Human Necessities | 14 | Expired |
| USD963892S1 | Step frame | General | 12 | Active |
| US4967722A | Arrow rest support for attachment to an archery bow | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US9127471B1 | Spa cover with inflatable bladders | Fixed Constructions | 6 | Active |
| USRE28835E | Work cabinet for sewing machine | General | 5 | Expired |
| US4226486A | Convertible table structure for sewing machines | Textiles; Paper | 4 | Expired |
| USD964600S1 | Step frame | General | 3 | Active |
| USD963891S1 | Step frame | General | 2 | Active |
| US4717212A | Sewing machine cabinet with power lift | Human Necessities | 2 | Expired |
| US5240315A | Sewing machine cabinet with manual lift | Human Necessities | 1 | Expired |
| US11060310B2 | Spa cover | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.