CMD Corporation
66Patents
34Active
66Granted
47Portfolio score
Filing activity: May 3, 1993 → May 19, 2023 · 9 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6481183B1 | Vertical form fill seal bag with recloseable seal and method of making thereof | Emerging Cross-Sectional Technologies | 120 | Expired |
| US6817160B2 | Vertical form fill seal bag with recloseable seal and method of making thereof | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5390875A | Method and apparatus for interleaving plastic bags | Performing Operations; Transporting | 41 | Expired |
| US5518559A | Method and apparatus for registration of a seal on a plastic bag | Performing Operations; Transporting | 34 | Expired |
| US8029428B2 | Method and apparatus for making skirtless seals | Emerging Cross-Sectional Technologies | 31 | Active |
| US5587032A | Method and apparatus for registration of a seal on a plastic bag | Performing Operations; Transporting | 31 | Expired |
| US6117058A | Bag making machine | Performing Operations; Transporting | 26 | Expired |
| US7445590B2 | Method and apparatus for making bags | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6186436A | Bag winder and method thereof | Performing Operations; Transporting | 21 | Expired |
| US5660674A | Method and apparatus for registration of a seal and perforation on a plastic bag | Performing Operations; Transporting | 18 | Expired |
| US7275354B2 | Vertical form, fill and seal packaging system | Performing Operations; Transporting | 17 | Expired |
| US5979729A | Separating a web at a line of weakness | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5861078A | Method and apparatus for detecting a seal on a plastic bag | Performing Operations; Transporting | 14 | Expired |
| US7322169B2 | Vertical, form, fill and seal packaging system | Performing Operations; Transporting | 14 | Expired |
| US6519922B1 | Device for the production of tubular bags | Performing Operations; Transporting | 13 | Expired |
| US9238343B2 | Method and apparatus for making bags | Emerging Cross-Sectional Technologies | 12 | Active |
| US5488480A | Apparatus and method for detecting a heat seal in a moving plastic film | Performing Operations; Transporting | 12 | Expired |
| US6746389B2 | Method and apparatus for folding or separating bags | Performing Operations; Transporting | 11 | Expired |
| US6820392B2 | Apparatus for processing continuously fed elongate material | Performing Operations; Transporting | 9 | Expired |
| US6792807B2 | Method and apparatus for sensing a seal on a film | Physics | 9 | Expired |
| US5961020A | Separating a web at a line of weakness | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8012076B2 | Method and apparatus for making bags | Emerging Cross-Sectional Technologies | 9 | Active |
| US5797828A | Draw tape machines and methods | Performing Operations; Transporting | 8 | Expired |
| US5857953A | Draw tape machines | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5934534A | Separating a web at a line of weakness | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.