Mark Mathias
29Patents
15h-index
44Co-inventors
81Inventor score
Filing activity: Jun 24, 1992 → Feb 15, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6376111B1 | System and method for controlling the humidity level of a fuel cell | Emerging Cross-Sectional Technologies | 89 | Expired |
| US6504072B1 | Selective para-xylene production by toluene methylation | Emerging Cross-Sectional Technologies | 77 | Expired |
| US6423879B1 | Selective para-xylene production by toluene methylation | Emerging Cross-Sectional Technologies | 74 | Expired |
| US6524736B1 | Methods of preparing membrane electrode assemblies | Emerging Cross-Sectional Technologies | 64 | Expired |
| US6048816A | Catalyst and process for converting methanol to hydrocarbons | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5591417A | Removing SOx, CO and NOx from flue gases | Performing Operations; Transporting | 49 | Expired |
| US6506954B1 | Process for producing chemicals from oxygenate | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5547648A | Removing SO.sub.x, NO.sub.X and CO from flue gases | Performing Operations; Transporting | 45 | Expired |
| US6046372A | Process for producing light olefins | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6538167B1 | Process for producing light olefins | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6156949A | Selective pseudocumene production by xylene methylation | Chemistry; Metallurgy | 31 | Expired |
| US6028238A | Xylene isomerization | Chemistry; Metallurgy | 30 | Expired |
| US5268089A | FCC of nitrogen containing hydrocarbons and catalyst regeneration | Chemistry; Metallurgy | 16 | Expired |
| US7303835B2 | Diffusion media, fuel cells, and fuel cell powered systems | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6824909B2 | Low-humidification and durable fuel cell membrane | Emerging Cross-Sectional Technologies | 15 | Expired |
| US7846591B2 | Water management layer on flowfield in PEM fuel cell | Emerging Cross-Sectional Technologies | 8 | Expired |
| US7455928B2 | Diffusion media for use in a PEM fuel cell | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7718288B2 | Integration of an electrical diode within a fuel cell | Emerging Cross-Sectional Technologies | 4 | Active |
| US7063913B2 | Diffusion media with microporous layer | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8343452B2 | Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell | Emerging Cross-Sectional Technologies | 3 | Active |
| US7157178B2 | Proton exchange membrane fuel cell | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7241474B2 | Preparation of patterned diffusion media | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7803497B2 | Fuel cell stack that utilizes an actuator to switch between interdigitated and straight flow for optimizing performance | Emerging Cross-Sectional Technologies | 1 | Active |
| US7105242B2 | Control of polymer surface distribution on diffusion media improved fuel cell performance | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9023556B2 | Method of preparing gas diffusion media for a fuel cell | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.