Jobst U. Gellert
191Patents
35h-index
22Co-inventors
90Inventor score
Filing activity: Feb 4, 1976 → Mar 13, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4557685A | Heated nozzle for injection molding apparatus | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4521179A | Injection molding core ring gate system | Performing Operations; Transporting | 63 | Expired |
| US5106291A | Injection molding apparatus with heated valve member | Performing Operations; Transporting | 62 | Expired |
| US4768283A | Coated injection molding nozzle and method | Emerging Cross-Sectional Technologies | 62 | Expired |
| US5299928A | Two-piece injection molding nozzle seal | Performing Operations; Transporting | 57 | Expired |
| US4279588A | Hot tip seal | Performing Operations; Transporting | 55 | Expired |
| US5223275A | Multi-cavity injection moulding system | Performing Operations; Transporting | 51 | Expired |
| US4344750A | Edge gated injection molding system with hollow seals | Performing Operations; Transporting | 50 | Expired |
| US5443381A | Injection molding one-piece insert having cooling chamber with radial rib portions | Performing Operations; Transporting | 48 | Expired |
| US4286941A | Injection molding nozzle seal | Performing Operations; Transporting | 47 | Expired |
| US5268184A | Injection molding nozzle with removable forward member | Performing Operations; Transporting | 47 | Expired |
| US4330258A | Injection molding mechanical double acting valve pin actuator | Performing Operations; Transporting | 46 | Expired |
| US5849343A | Injection molding apparatus with a one-piece gate insert locating a cylindrical valve member | Performing Operations; Transporting | 45 | Expired |
| US4212627A | Injection molding valve pin actuator mechanism | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4043740A | Injection molding nozzle seal | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5028227A | Injection molding nozzle with replaceable gate insert | Performing Operations; Transporting | 44 | Expired |
| US5820899A | Injection molding nozzle with edge gate inserts and sealing ring | Performing Operations; Transporting | 43 | Expired |
| US6099780A | Method of three layer injection molding with sequential and simultaneous coinjection | Performing Operations; Transporting | 42 | Expired |
| US4663811A | Manufacturing method for selected gate configuration injection molding nozzles | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4917594A | Injection molding system with gas flow through valve gate | Performing Operations; Transporting | 41 | Expired |
| US4648546A | Composite plate method of manufacturing injection molding manifold | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4911636A | Injection molding nozzle having nose portion with heating element encircling the bore | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4771164A | Injection molding nozzle and method | Performing Operations; Transporting | 41 | Expired |
| US4212626A | Stack injection molding melt transfer system | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4013393A | Valve-gated injection molding mechanism | Performing Operations; Transporting | 41 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.