Leif E. Stern
34Patents
15h-index
3Co-inventors
74Inventor score
Filing activity: Mar 25, 1975 → Sep 26, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3932966A | Abrasive disc | Performing Operations; Transporting | 47 | Expired |
| US4610039A | Waste container | Human Necessities | 46 | Expired |
| US4603793A | Coupling device for connecting a material outlet to a packing | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5452826A | Portioning arrangement for dispensing portions of liquid foodstuff from a foodstuff container | Performing Operations; Transporting | 40 | Expired |
| US5730327A | Arrangement for portioning viscous materials from a pack | Physics | 39 | Expired |
| US6082584A | Package method for the manufacture thereof and coupling therefor | Performing Operations; Transporting | 29 | Expired |
| US6257844A | Pump device for pumping liquid foodstuff | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6109315A | Dispensing device and package from which a liquid product preferably liquid foodstuff shall be dispensed by means of the dispensing device as well as a coupling device at said package | Performing Operations; Transporting | 22 | Expired |
| US5542574A | Air driven condiment dispenser | Human Necessities | 18 | Expired |
| US4102083A | Particle suction systems | Performing Operations; Transporting | 17 | Expired |
| USD418413S | Connection member for plastic packings | General | 17 | Expired |
| US6769539B2 | Device for protecting and adding a component to a container | Human Necessities | 17 | Expired |
| US5462203A | Dispenser for dispersing convenient units of two liquid products | Human Necessities | 17 | Expired |
| US6098845A | Package having a flexible wall and containing a liquid | Performing Operations; Transporting | 16 | Expired |
| US6598764B1 | Device for discharge of a paste-like product from a package of flexible material and package adapted for use in connection with said device | Performing Operations; Transporting | 16 | Expired |
| US4827955A | Device for cleaning paint distributing channels in spray guns | Performing Operations; Transporting | 14 | Expired |
| US5693360A | Tooth pick and method for the manufacture thereof | Human Necessities | 13 | Expired |
| US4819677A | Container for hazardous detergents | Performing Operations; Transporting | 11 | Expired |
| USD317695S | Dispenser for liquid food | General | 10 | Expired |
| USD294072S | Tooth pick | General | 9 | Expired |
| USD339864S | Connector for an I.V. bag | General | 8 | Expired |
| US5107632A | Device for separating blasting dust from blasting agent | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD302611S | Spray gun cleaning device | General | 7 | Expired |
| US6227410A | Package, method for the manufacture thereof and coupling therefor | Performing Operations; Transporting | 7 | Expired |
| US4687257A | Method of making brushes, and brushes thus made | Human Necessities | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.