US6333123-B1  Kozawa; Hydrogen Gas Absorber Made of MnO2 Catalyzed with Palladium or Platinum Salts, Denki Kagaku 46:416-418, 1978.WO200201655-A2  PATENT ABSTRACTS OF JAPAN vol. 008, no. 039 (E-228), 21 February 1984 (1984-02-21) & JP 58 197684 A (MITSUI KINZOKU KOGYO KK), 17 November 1983 (1983-11-17);  DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; JIANG, ZHENZONG ET AL: "Device for catalytic combinationrecombination of hydrogen and oxygen" retrieved from STN Database accession no. 115:143741 XP002186382 & CN 1 038 947 A (CITY UNIVERSITY OF LONDON, UK) 24 January 1990 (1990-01-24);  DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; JIANG, ZHENZONG ET AL: "Device for catalytic combination/recombination of hydrogen and oxygen" retrieved from STN Database accession no. 115:143741 XP002186382 & CN 1 038 947 A (CITY UNIVERSITY OF LONDON, UK) 24 January 1990 (1990-01-24);  DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; JIANG, ZHENZONG ET AL: "Device for catalytic combination/recombination of hydrogen and oxygen" retrieved from STN Database accession no. 115:143741 XP002186382&CN 1 038 947 A (CITY UNIVERSITY OF LONDON, UK) 24 January 1990 (1990-01-24);  PATENT ABSTRACTS OF JAPAN vol. 008, no. 039 (E-228), 21 February 1984 (1984-02-21)&JP 58 197684 A (MITSUI KINZOKU KOGYO KK), 17 November 1983 (1983-11-17)WO200201655-A3  DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; JIANG, ZHENZONG ET AL: "Device for catalytic combination/recombination of hydrogen and oxygen" retrieved from STN Database accession no. 115:143741 XP002186382 & CN 1 038 947 A (CITY UNIVERSITY OF LONDON, UK) 24 January 1990 (1990-01-24);  PATENT ABSTRACTS OF JAPAN vol. 008, no. 039 (E-228), 21 February 1984 (1984-02-21) & JP 58 197684 A (MITSUI KINZOKU KOGYO KK), 17 November 1983 (1983-11-17);  DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; JIANG, ZHENZONG ET AL: "Device for catalytic combination/recombination of hydrogen and oxygen", XP002186382, retrieved from STN Database accession no. 115:143741,relevantClaims[1-5,24-28],relevantPassages[&lt;pp&gt;A&lt;/pp&gt;];  PATENT ABSTRACTS OF JAPAN vol. 008, no. 039 (E - 228) 21 February 1984 (1984-02-21),relevantClaims[17],relevantPassages[&lt;pp&gt;A&lt;/pp&gt;]