John H. Welsch
38Patents
19h-index
36Co-inventors
81Inventor score
Filing activity: Nov 13, 1974 → Jun 16, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5203619A | Storage system including a vertically retractable storage unit | Performing Operations; Transporting | 68 | Expired |
| US4595107A | Utility cart | Human Necessities | 68 | Expired |
| US4318352A | Adjustable shelving having a spiral engagement arrangement | Human Necessities | 57 | Expired |
| US4843975A | Storage shelf | Human Necessities | 53 | Expired |
| US6113042A | Self-adjusting support system | Human Necessities | 51 | Expired |
| US4964350A | Plastic frame system having a triangular support post | Human Necessities | 48 | Expired |
| US5279231A | Plastic frame system having a triangular support post | Human Necessities | 47 | Expired |
| US5423251A | Plastic frame system having a triangular support post | Human Necessities | 45 | Expired |
| US4485521A | Shock absorbing caster provided with an elastomeric member to prevent water collection therein | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4237798A | Adjustable shelving | Human Necessities | 38 | Expired |
| US4509805A | Enclosed shelving | Performing Operations; Transporting | 37 | Expired |
| US4382517A | Panels for holding printed circuit boards | Electricity | 36 | Expired |
| US4991725A | Compact storage system | Human Necessities | 31 | Expired |
| US7401754B2 | Shelf support system having a cylindrical support post and providing improved stability and rigidity | Human Necessities | 30 | Expired |
| US4989519A | Shelving system having two sets of locking tapers | Human Necessities | 29 | Expired |
| US6443318B1 | Structural support system having free-standing vertical standards | Human Necessities | 23 | Expired |
| US4385781A | Carrier for printed circuit boards | Electricity | 21 | Expired |
| US5271337A | Plastic frame system having a triangular support post | Human Necessities | 21 | Expired |
| US4892044A | Corner structure for a modular shelf and method of making same | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4444125A | Knock down work table | Human Necessities | 18 | Expired |
| USD592897S1 | Mechandising shelf with a dropped mat | General | 17 | Expired |
| US3961672A | Impact hammer post driver | Fixed Constructions | 16 | Expired |
| US4346498A | Shock resistant caster assembly | Performing Operations; Transporting | 16 | Expired |
| USD273070S | Work table top | General | 14 | Expired |
| US4957206A | Device for storing a plurality of dishes or the like in a plurality of stacks | Human Necessities | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.