Wendell D. Willingham
26Patents
10h-index
24Co-inventors
75Inventor score
Filing activity: Oct 31, 1975 → Oct 18, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5806707A | Removable inner promotional compartment closure and promotional gaming system | Performing Operations; Transporting | 72 | Expired |
| US5769263A | Compartmentalized top cover promotional closure | Performing Operations; Transporting | 68 | Expired |
| USD513181S1 | Closure shell | General | 59 | Expired |
| USD516911S1 | Closure shell | General | 52 | Expired |
| US7503469B2 | Integrally molded dispensing valve and method of manufacture | Performing Operations; Transporting | 33 | Active |
| US4295320A | Closure conversion apparatus for existing closure applicating machines | Performing Operations; Transporting | 30 | Expired |
| US7874441B2 | Closure and package for high-temperature applications | Performing Operations; Transporting | 16 | Active |
| US4487325A | Crown closures and containers | Performing Operations; Transporting | 15 | Expired |
| US6032820A | Easy-open promotion compartment | Performing Operations; Transporting | 14 | Expired |
| US3983992A | Assembly of two component closure | Performing Operations; Transporting | 13 | Expired |
| US5915585A | Easy-open promotion compartment | Performing Operations; Transporting | 10 | Expired |
| US6416312B1 | Cam mechanism with side action for compression molding process | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4238106A | Core pin cooling for high speed injection molding apparatus | Performing Operations; Transporting | 10 | Expired |
| US5819976A | Closure having self-venting, sealed promotion compartment | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4393977A | Child resistant package | Performing Operations; Transporting | 9 | Expired |
| US4308707A | Closure pre-tightener for closure applicating machines | Performing Operations; Transporting | 9 | Expired |
| US6874648B2 | Closure with gas-barrier liner and package incorporating same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7247014B2 | Compression molding machine | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6533136B1 | Sealing closure for extrusion blow molded containers | Performing Operations; Transporting | 5 | Expired |
| US6692685B1 | Sealing closure for extrusion blow molded containers | Performing Operations; Transporting | 5 | Expired |
| US7261546B1 | Apparatus for severing mold charges in a compression molding machine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7556488B2 | Vertical wheel machine and method for compression molding sealing liners | Emerging Cross-Sectional Technologies | 2 | Active |
| USRE32237E | Closure pre-tightener for closure applicating machines | General | 1 | Expired |
| US8517194B2 | Tamper-indicating closure and package | Performing Operations; Transporting | 1 | Active |
| US7621735B2 | Apparatus for placing mold charges into a compression molding machine | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.