1. Allmendinger F, Merkle R, Kreuer KD, Maier J, Fuel cell for use in internal reforming of combustible gases, e.g. methanol and higher alcohols, includes anode comprising material having catalytic activity  EP1432058-A2.

2. Bell M, Kreuer KD, Rabenau A, Weppner W, Solid proton conductor consisting of zeolite - which includes cations contg. protons, and is used as solid electrolyte or separator in prim. or sec. cells or fuel cells DE3127821-A; JP58025217-A; US4495078-A.

3. Fuchs A, Kreuer KD, Maier J, Wohlfarth A, Producing alkaline single ion conductor, comprises e.g. solvating hydrocarbon oligomer or polymer having immobilized acidic substituent groups, in its alkaline ion form, in aprotic polar solvent for sufficient time to get solvated product EP2450907-A1; WO2012059222-A1; US2013216936-A1; EP2450907-B1; US9299501-B2.

4. Kreuer KD, Fuchs A, Maier J, Frank G, Soczka-Guth T, Clauss J Proton conductor with high thermal, chemical and physical stability - contains acid and amphoteric substance, used for coating sheet, especially membrane, foil or electrode, or as membrane used in electrochemical cell, etc WO9807164-A; DE19632285-A; EP917716-A; DE19632285-A1; WO9807164-A1; EP917716-A1; JP2000517462-W; US6264857-B1; EP917716-B1; DE59710967-G; JP4375582-B2.

5. Kreuer KD, Takamuku S, Titvinidze G, Wohlfarth A, Meyer W Polymer blend used for manufacturing polymer membrane, comprises polymer which is sulfonated poly(arylene sulfone) and polymer which is not sulfonated poly(arylene sulfone) in same solvent or solvent mixture without any precipitation EP2902431-A1; WO2015117740-A1.

6. Kreuer KD, Kohler H Potentiometric sensor for low temp. oxygen activity determn. - has oxygen sensitive electrode of transition metal oxide EP340654-A2; EP340654-A; DE3814735-A.

7. Kreuer KD, Kohler H, Solid state sensor with low-selective element - contains multiphase solid to convert ionic transport to electron-movement DE3727485-A1; DE3727485-A.

8. Kreuer KD, Schulte K, Uniform gasification of foam plastic components - achieved by injecting gas into low press. area produced by venturi (BE040477) DE2544559-A; BE846900-A; JP52045668-A; FR2326284-A; US4132838-A; AT7607319-A; GB1552476-A.

9. Kreuer KD, Weppner W, Rabenau A, Prim. or sec. cell - uses zeolite electrolyte which conducts protons, and separates metal electrode from metal oxide or sulphide electrode EP70020-A1; EP70020-A; DE3127820-A; JP58019878-A; US4513069-A; EP70020-B; DE3266814-G.

10. Rabenau A, Diem H, Kreuer KD, Solid proton conductor useful as separator or electrolyte - having amorphous matrix with proton-contg. cations and polar vehicle DE3210096-A1; DE3210096-A; JP58169868-A.

11. Schuster M, Kreuer K, Thalbitzer AH, Maier J, Kreuer KD, Thalbitzer A, et al., New sulfonated poly(arylene) compounds useful e.g. as diaphragm material and in fuel cells DE102005010411-A1; WO2006094767-A1; EP1856188-A1; KR2007122456-A; CN101171284-A; JP2008533225-W; US2008207781-A1; RU2423393-C2; CN101171284-B; US8349993-B2; US2013079469-A1; KR1265971-B1; CA2600213-C; JP5454853-B2; US8846854-B2.