Christopher M. Johnson
26Patents
10h-index
13Co-inventors
72Inventor score
Filing activity: Mar 27, 1997 → Mar 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5947313A | Molded plastic basket and rear panel for shopping cart | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6572122B2 | Multiple child seat nestable shopping cart | Performing Operations; Transporting | 53 | Expired |
| US6270093A | Multiple child seat nestable shopping cart | Performing Operations; Transporting | 47 | Expired |
| USD400679S | Combined molded plastic shopping cart basket and rear panel | General | 46 | Expired |
| USD470292S1 | Cart | General | 40 | Expired |
| US5871286A | Molded wheel and bearing assembly | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| USD425681S | Ergonomic handgrip for a shopping cart | General | 21 | Expired |
| USD655880S1 | Cart for large area objects | General | 20 | Expired |
| USD770716S1 | Shopping cart frame | General | 13 | Active |
| USD724852S1 | Infant carrier holder | General | 12 | Active |
| USD669317S1 | Cup holder | General | 9 | Active |
| USD620673S1 | Set of pallet guard terminators | General | 9 | Expired |
| US7680833B1 | System and method for database structure comparison | Emerging Cross-Sectional Technologies | 8 | Expired |
| USD521709S1 | Bulk item cart | General | 7 | Expired |
| USD648501S1 | Shopping cart infant seat | General | 6 | Expired |
| US8789475B1 | Pallet guard terminator | Performing Operations; Transporting | 5 | Active |
| US8528916B2 | Shopping cart infant seat | Emerging Cross-Sectional Technologies | 4 | Active |
| USD686664S1 | Simulated bulk goods display | General | 3 | Active |
| US11161537B2 | Infant carrier holder | Emerging Cross-Sectional Technologies | 2 | Active |
| US9540026B2 | Infant carrier holder | Emerging Cross-Sectional Technologies | 2 | Active |
| US9688299B2 | Infant carrier holder | Emerging Cross-Sectional Technologies | 2 | Active |
| US11244549B2 | Information display device and technique | Physics | 1 | Active |
| US11235796B2 | Infant carrier transport | Performing Operations; Transporting | 0 | Active |
| US9914469B2 | Infant carrier transport | Performing Operations; Transporting | 0 | Active |
| US10363951B2 | Child restraint for child seat | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.