Inventor
LYGIN ALEXANDER
DE20 patents
⚠️ This page may combine multiple inventors who share the name “LYGIN ALEXANDER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EVONIK OPERATIONS GMBH
6 patentsUS12528704B2Jan 20, 2026
Silica with reduced tribo-charge for toner applications
EVONIK OPERATIONS GMBH0 citations60
US11643383B2May 9, 2023
Method for producing a homogeneous catalyst for the Tishchenko reaction
EVONIK OPERATIONS GMBH0 citations59
US10934245B2Mar 2, 2021
Method for producing a homogeneous catalyst for the Tishchenko reaction
EVONIK OPERATIONS GMBH0 citations59
US12552945B2Feb 17, 2026
Silica-based hydrophobic granular material with an increased polarity
EVONIK OPERATIONS GMBH0 citations55
US12330951B2Jun 17, 2025
Silica granules for thermal treatment
EVONIK OPERATIONS GMBH0 citations53
US10640448B2May 5, 2020
Method for preparing carboxylic esters from aldehydes
EVONIK OPERATIONS GMBH0 citations48
ROEHM GMBH
5 patentsUS10766847B2Sep 8, 2020
Method for producing methylmethacrylate
ROEHM GMBH7 citations83
US11124471B2Sep 21, 2021
Process for oxidative esterification of aldehydes to carboxylic acid esters
ROEHM GMBH7 citations82
US10479754B2Nov 19, 2019
Synthesis of methacrylic acid from methacrolein-based alkyl methacrylate
ROEHM GMBH5 citations73
US10906025B2Feb 2, 2021
Gold-based catalyst for oxidative esterification of aldehydes to carboxylic acid esters
ROEHM GMBH0 citations61
US11919846B2Mar 5, 2024
Continuous process for preparing methacrolein
ROEHM GMBH0 citations60
KRILL STEFFEN
4 patentsUS9890105B2Feb 13, 2018
Method for producing methylmethacrylate
KRILL STEFFEN25 citations93
US9617199B2Apr 11, 2017
Process for preparing unsaturated esters proceeding from aldehydes by direct oxidative esterification
KRILL STEFFEN25 citations92
US9963417B2May 8, 2018
Process for producing methyl methacrylate
KRILL STEFFEN9 citations83
US9580374B2Feb 28, 2017
Method for producing methacrolein and the conditioning/draining thereof for direct oxidative esterification
KRILL STEFFEN6 citations72
EVONIK ROEHM GMBH
4 patentsUS10457626B2Oct 29, 2019
Method for producing methylmethacrylate
EVONIK ROEHM GMBH5 citations83
US10273201B2Apr 30, 2019
Method for producing methylmethacrylate
EVONIK ROEHM GMBH5 citations83
US10301251B2May 28, 2019
Extractive workup of a sodium-salt-containing MMA-methanol mixture
EVONIK ROEHM GMBH12 citations78
US10596539B2Mar 24, 2020
Method for carrying out a heterogeneously catalysed reaction
EVONIK ROEHM GMBH3 citations73