IFI

431 - COMBUSTION (IPC F23D, F23Q, F23N)

       1999  1998  1997  1996  1995  1994  1993  1992  1991  1990  Total

GAS RESEARCH INSTITUTE
          9     1     6     2     4     0     3     1     3     2     31
BOC GROUP INC THE
          0     0     0     1     2     1     1     0     0     0      5
ENGELHARD CORP
          0     0     0     1     2     0     0     1     0     0      4
ATLANTIC RICHFIELD CO
          1     0     0     0     0     1     0     0     1     0      3
IMPERIAL CHEMICAL INDUSTRIES LTD GB
          0     0     0     0     0     0     2     0     0     1      3
JOHNSON, S C & SON INC
          2     0     1     0     0     0     0     0     0     0      3
DEUTSCHE FORSCHUNGSANSTALT FUR LUFT- UND RAUMFAHRT E V DE
          0     0     0     0     1     1     0     0     0     0      2
DAIKIN KOGYO CO LTD JP
          1     0     0     0     0     0     0     0     0     0      1
MAYTAG CORP
          0     0     0     0     0     0     1     0     0     0      1
RHONE-POULENC CHIMIE FR
          0     0     0     0     0     0     0     0     0     1      1
SIEMENS WESTINGHOUSE POWER CORP
          1     0     0     0     0     0     0     0     0     0      1

Total    14     1     7     4     9     3     7     2     4     4     55