Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 11/08/96

Patent Number   Serial Number   Filing Date     Issue Date    Granted Date

Re. 34,045      07/585,887      09/20/90        08/25/92          11/08/96
4,641,127       06/696,467      01/30/85        02/03/87          11/14/96
4,762,004       06/911,369      09/25/86        08/09/88          11/14/96
4,955,709       07/042,037      04/24/87        09/11/90          11/14/96
4,998,317       07/380,154      07/13/89        03/12/91          11/12/96
5,019,861       07/419,963      10/11/89        05/28/91          11/12/96
5,089,975       07/464,346      01/12/90        02/18/92          11/14/96
5,093,130       07/412,846      09/26/89        03/03/92          11/12/96
5,125,898       07/776,843      10/15/91        06/30/92          11/13/96
5,127,880       07/595,455      10/10/90        07/07/92          11/12/96
5,139,040       07/743,177      08/09/91        08/18/92          11/14/96
5,184,019       07/709,566      06/03/91        02/02/93          11/12/96

                 Patents Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 11/15/96

Patent Number   Serial Number   Filing Date     Issue Date    Granted Date

Re. 34,892      07/662,668      12/05/90        04/04/95          11/19/96
4,658,805       06/649,424      12/03/84        04/21/87          11/20/96
4,663,964       06/811,868      12/20/85        05/12/87          11/20/96
4,673,240       06/345,619      02/04/82        06/16/87          11/19/96
4,727,041       06/852,645      04/16/86        02/23/88          11/18/96
4,731,458       06/855,720      04/25/86        03/15/88          11/18/96
4,749,109       06/911,398      09/25/86        06/07/88          11/22/96
4,888,995       07/269,357      11/10/88        12/26/89          11/19/96
4,953,473       07/466,770      01/18/90        09/04/90          11/21/96
5,042,280       07/507,222      04/11/90        08/27/91          11/18/96
5,049,373       07/553,166      07/13/90        09/17/91          11/21/96
5,066,328       07/491,260      03/09/90        11/19/91          11/20/96
5,071,831       07/300,284      01/19/89        12/10/91          11/21/96
5,080,153       07/644,112      01/18/91        01/14/92          11/15/96
5,093,921       07/452,358      12/19/89        03/03/92          11/21/96
5,102,337       07/465,312      01/16/90        04/07/92          11/21/96
5,108,141       07/435,806      11/13/89        04/28/92          11/21/96
5,110,584       07/601,296      10/22/90        05/05/92          11/22/96
5,112,315       07/592,623      10/04/90        05/12/92          11/20/96
5,118,114       07/745,387      08/15/91        06/02/92          11/20/96
5,119,988       07/545,399      06/28/90        06/09/92          11/22/96
5,122,055       07/726,117      06/26/91        06/16/92          11/18/96