Weatherchem Corporation
63Patents
12Active
63Granted
41Portfolio score
Filing activity: May 15, 1975 → Mar 16, 2020 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4693399A | Two-flap closure | Performing Operations; Transporting | 185 | Expired |
| US4936494A | Two-flap container closure | Performing Operations; Transporting | 124 | Expired |
| US6761279B1 | Combined container and closure | Performing Operations; Transporting | 123 | Expired |
| USD476892S1 | Liquid dispensing cap | General | 102 | Expired |
| USD340187S | Two flap closure | General | 102 | Expired |
| US4955513A | Dispensing closure with flap retention | Performing Operations; Transporting | 93 | Expired |
| US4792054A | Tamper-evident closure for dispensers | Performing Operations; Transporting | 90 | Expired |
| US6510971B1 | Liquid dispensing closure | Emerging Cross-Sectional Technologies | 90 | Expired |
| US4541541A | Tamper-resistant closure for dispensers | Performing Operations; Transporting | 89 | Expired |
| USD385791S | Single flap push in closure with over catch | General | 86 | Expired |
| USD339065S | Dispensing closure | General | 76 | Expired |
| USD340188S | Single flap container cap | General | 74 | Expired |
| US6575323B1 | Closure with dispensing flap stay-open construction | Performing Operations; Transporting | 73 | Expired |
| USD404201S | Sachet case | General | 67 | Expired |
| US5330082A | Threaded dispensing closure with flap | Performing Operations; Transporting | 66 | Expired |
| USRE37634E1 | Two-flap closure | General | 64 | Expired |
| US4106672A | Resealable end closure having plural openings | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5908125A | Child-resistant screw-on cap and bottle | Performing Operations; Transporting | 59 | Expired |
| US3966080A | End closure with resealable tab | Performing Operations; Transporting | 55 | Expired |
| USD305206S | Two flap container cap | General | 55 | Expired |
| USD468639S1 | Liquid dispensing closure | General | 55 | Expired |
| US5383582A | Sift-resistant dispensing closure | Performing Operations; Transporting | 52 | Expired |
| USD628890S1 | Dispensing closure | General | 52 | Expired |
| USD331878S | Dispensing cap | General | 52 | Expired |
| US4082201A | Two-piece end closure with assembly device | Performing Operations; Transporting | 50 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.