Inventor · disambiguated record
Jan Heijl
Also filed as: HEIJL JAN
10 granted patents·9 pending applications·1 citations·filing 2015–2023
76Inventor score
Top patents by PatentIndex Score
19 records- 0181US12173150B2Polyester carbonates from cycloaliphatic diacids and aliphatic diols, and process for preparing sameCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2019·Granted Dec 24, 2024·1 cites·14 claims
- 0265US2024209146A1Process for producing polycarbonate with improved sustainabilityCOVESTRO DEUTSCHLAND AG·Filed 2022·Application pending·0 cites
- 0364US11459424B2Method for producing polycarbonateCOVESTRO DEUTSCHLAND AG·Filed 2018·Granted Oct 4, 2022·0 cites·15 claims
- 0464US2024279404A1Polycarbonate with carboxy end groups and method for preparing polycarbonateCOVESTRO DEUTSCHLAND AG·Filed 2022·Application pending·0 cites
- 0563US12473397B2Polyester carbonates from aliphatic diacids and aliphatic diols, and process for the production thereofCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2020·Granted Nov 18, 2025·0 cites·12 claims
- 0662US12195623B2Composition and method for producing a transparent thermoplastic polycarbonate/polymethyl methacrylate moulding compoundCOVESTRO DEUTSCHLAND AG·Filed 2022·Granted Jan 14, 2025·0 cites·17 claims
- 0761US2025297062A1Polycarbonate cocondensate with phenolic building blocksCOVESTRO DEUTSCHLAND AG·Filed 2023·Application pending·0 cites
- 0861US2025313665A1Polycarbonate with phenolic building blocks and low chlorine contentCOVESTRO DEUTSCHLAND AG·Filed 2023·Application pending·0 cites
- 0961US2025270368A1Amorphous copolycarbonate with phenolic building blocksCOVESTRO DEUTSCHLAND AG·Filed 2023·Application pending·0 cites
- 1058US10167364B2Process for preparing polycarbonates by transesterifying dithiocarbonates or selenium analogues thereof with bisphenolsCOVESTRO DEUTSCHLAND AG·Filed 2016·Granted Jan 1, 2019·0 cites·15 claims
- 1156US2023040523A1Method for the production of a polyester carbonateCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2020·Application pending·0 cites
- 1255US11420918B2Method for producing a hydroxy compound by decarboxylation in the absence of a catalystCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2019·Granted Aug 23, 2022·0 cites·16 claims
- 1355US2022169787A1Process for producing polycarbonate - point of addition of the chain terminatorCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2020·Application pending·0 cites
- 1452US2022185955A1Process for producing polycarbonate using a reduced phosgene excessCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2020·Application pending·0 cites
- 1549US11319270B2Process for preparing a hydroxy compound by means of decarboxylationCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2019·Granted May 3, 2022·0 cites·18 claims
- 1644US2022017442A1Method for producing a hydroxy compound by decarboxylation in the presence of a bronsted baseCOVESTRO INTELLECTUAL PROPERTY GMBH & CO KG·Filed 2019·Application pending·0 cites
- 1743US10370491B2Preparation of highly heat-resistant (co)polycarbonates by the transesterification methodCOVESTRO DEUTSCHLAND AG·Filed 2016·Granted Aug 6, 2019·0 cites·15 claims
- 1841US11149116B2Process for producing a polycarbonate using an organic solvent based on chlorohydrocarbonsCOVESTRO DEUTSCHLAND AG·Filed 2018·Granted Oct 19, 2021·0 cites·13 claims
- 1938US9771451B2Method for producing polycarbonate according to the phase interface methodCOVESTRO DEUTSCHLAND AG·Filed 2015·Granted Sep 26, 2017·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →