Himont Inc.
102Patents
0Active
102Granted
40Portfolio score
Filing activity: Aug 20, 1984 → Feb 28, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4916198A | High melt strength, propylene polymer, process for making it, and use thereof | Chemistry; Metallurgy | 147 | Expired |
| US5049535A | Catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 98 | Expired |
| US4978648A | Catalysts for the polymerization of olefins | Chemistry; Metallurgy | 93 | Expired |
| US5047485A | Process for making a propylene polymer with free-end long chain branching and use thereof | Chemistry; Metallurgy | 77 | Expired |
| US5212246A | Olefin polymer films | Emerging Cross-Sectional Technologies | 74 | Expired |
| US4971937A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 74 | Expired |
| US5414027A | High melt strength, propylene polymer, process for making it, and use thereof | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5411994A | Graft copolymers of polyolefins and a method of producing same | Chemistry; Metallurgy | 72 | Expired |
| US4532313A | Method for preparing an improved catalyst support, Ziegler-Natta catalyst utilizing said support and polymerization of 1-olefins utilizing said catalyst | Chemistry; Metallurgy | 70 | Expired |
| US5064799A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 65 | Expired |
| US5302454A | Plasto-elastic polypropylene compositions | Emerging Cross-Sectional Technologies | 64 | Expired |
| US5047446A | Thermal treatment of irradiated propylene polymer material | Emerging Cross-Sectional Technologies | 61 | Expired |
| US4948840A | Thermoplastic elastomer of propylene polymer material and crosslinked ethylene-propylene rubber | Chemistry; Metallurgy | 58 | Expired |
| US5286564A | Elastoplastic polyolefin compositions | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5290856A | Engineering resin-propylene polymer graft composition | Chemistry; Metallurgy | 55 | Expired |
| US5300365A | Olefin polymer films | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5106807A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 49 | Expired |
| US5331047A | Olefin polymer films | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5298561A | Propylene polymer composition having good transparency and improved impact resistance | Chemistry; Metallurgy | 43 | Expired |
| US5360868A | Polyolefin compositions having a high balance of stiffness and impact strength | Chemistry; Metallurgy | 43 | Expired |
| US5221651A | Component and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 42 | Expired |
| US5140074A | Method of producing olefin polymer graft copolymers | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4888369A | Polypropylene composition resistant to high energy radiation, and radiation sterilized articles therefrom | Chemistry; Metallurgy | 42 | Expired |
| US5410002A | Process for the gas-phase polymerization of alpha-olefins | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5168991A | Compact disc package with moveable carrier | Physics | 41 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.