Number | Name | Date | Kind |
---|---|---|---|
3576182 | Howland | Apr 1971 | |
3916622 | Gospodar | Nov 1975 | |
3962866 | Neidhard et al. | Jun 1976 | |
3969932 | Rieger et al. | Jul 1976 | |
4007589 | Neidhard et al. | Feb 1977 | |
4015428 | Kawai | Apr 1977 | |
4023358 | Maurer et al. | May 1977 | |
4121548 | Hattori et al. | Oct 1978 | |
4622809 | Abthoff et al. | Nov 1986 | |
4962741 | Cook et al. | Oct 1990 | |
5077970 | Hamburg | Jan 1992 |
Number | Date | Country |
---|---|---|
6445913 | Feb 1989 | JPX |
2178857 | Jan 1987 | GBX |
Entry |
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Clemens et al.--SAE Technical Paper 900062, Detection of Catalyst Performance Loss Using On-Board Diagnostics, Feb. 26-Mar. 2, 1990. |