Huels Aktiengesellschaft
585Patents
0Active
585Granted
45Portfolio score
Filing activity: Aug 12, 1983 → Nov 27, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5871823A | Hydrophilic coating of surfaces of polymeric substrates | Chemistry; Metallurgy | 114 | Expired |
| US6245281A | Use of a nylon-12 for selective laser sintering | Performing Operations; Transporting | 86 | Expired |
| US5087739A | Circulation process for the production of aliphatic and cycloaliphatic diisocyanates | Chemistry; Metallurgy | 74 | Expired |
| US5803895A | Flexible adaptable plastic elements with equidistantly embedded catheters for radiotherapy | Human Necessities | 71 | Expired |
| US6090459A | Multilayer plastic composition having an electrically conductive inner layer | Emerging Cross-Sectional Technologies | 62 | Expired |
| US5885341A | Organopolysiloxane-containing, water-based compositions containing glycidal ether, acrylic and/or methacrylic functional groups, process for their preparation, and their use | Chemistry; Metallurgy | 61 | Expired |
| US6096369A | Process for hydrophilicizing the surface of polymeric substrates with a macroinitiator as primer | Performing Operations; Transporting | 60 | Expired |
| US6001894A | Process for modifying the surface of polymer substrates by graft polymerization | Chemistry; Metallurgy | 60 | Expired |
| US5425817A | Multilayer plastic pipe with polyamide inner and outer layers and a linear crystalline polyester intermediate layer | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6054601A | Fluoroalkyl-functional organopolysiloxane-containing compositions based on water, a process for their preparation and their use | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5965502A | Aqueous viscoelastic surfactant solutions for hair and skin cleaning | Human Necessities | 56 | Expired |
| US5679147A | Water-based organic polysiloxane-containing compositions, processes for their preparation and their use | Chemistry; Metallurgy | 53 | Expired |
| US5808125A | Fluoroalkyl-functional organopolysiloxane-containing compositions based on water, a process for their preparation and their use | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5629400A | Water-based organopolysiloxane-containing compositions, processes for their preparation and their use | Chemistry; Metallurgy | 52 | Expired |
| US5886219A | Process for preparing malonic acid and alkylmalonic acids | Chemistry; Metallurgy | 51 | Expired |
| US5902896A | Process for preparing bis (hydroxymethyl) compounds | Chemistry; Metallurgy | 50 | Expired |
| US6248811A | Bioactive surface coating | Chemistry; Metallurgy | 49 | Expired |
| US6243616A | Method and device for producing three-dimensional objects | Performing Operations; Transporting | 49 | Expired |
| US5798048A | Multilayer plastic fuel filter having antistatic properties | Performing Operations; Transporting | 48 | Expired |
| US5370816A | Detergent composition containing a mixture of alkyl polyglycosides | Chemistry; Metallurgy | 47 | Expired |
| US5633358A | Process for bleaching aqueous surfactant solutions | Chemistry; Metallurgy | 47 | Expired |
| US6239194A | Surface-modified fillers, process for their preparation and their use | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5053440A | Polymeric materials which can be inscribed by laser light | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5849942A | Fluoroalkyl-functional organopolysiloxane-containing compositions | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4840993A | Impact-resistant polyamide molding compounds | Chemistry; Metallurgy | 44 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.