Patents Reinstated Due to the Acceptance of aLate
                         Maintenance Fee From 6/15/01

Patent          Serial          Filing          Issue           Granted
Number          Number          Date            Date            Date


4,724,767      06/855,862      04/24/86        02/16/88        06/20/01
4,806,258       07/093,814      09/04/87        02/21/89        06/15/01
5,015,585       07/159,015      02/23/88        05/14/91        06/18/01
5,070,986       07/492,824      03/12/90        12/10/91        06/15/01
5,088,413       07/587,298      09/24/90        02/18/92        06/18/01
5,107,929       07/716,574      06/17/91        04/28/92        06/18/01
5,119,587       07/459,471      01/02/90        06/09/92        06/19/01
5,138,687       07/588,332      09/26/90        08/11/92        06/18/01
5,164,145       07/595,039      10/10/90        11/17/92        06/18/01
5,177,408       07/732,829      07/19/91        01/05/93        06/18/01
5,180,586       07/599,575      10/18/90        01/19/93        06/19/01
5,185,728       07/908,757      07/06/92        02/09/93        06/15/01
5,194,121       07/689,946      05/24/91        03/16/93        06/19/01
5,203,177       07/797,360      11/25/91        04/20/93        06/20/01
5,246,028       07/938,933      09/01/92        09/21/93        06/19/01
5,415,646       08/240,580      05/11/94        05/16/95        06/20/01
5,421,382       07/883,680      05/15/92        06/06/95        06/19/01
5,461,668       07/927,896      08/07/92        10/24/95        06/21/01
5,475,925       08/215,893      03/21/94        12/19/95        06/19/01
5,511,142       07/925,613      08/06/92        04/23/96        06/18/01
5,515,977       08/513,425      08/10/95        05/14/96        06/18/01
5,523,700       08/408,893      03/22/95        06/04/96        06/19/01
5,525,793       08/319,792      10/07/94        06/11/96        06/19/01
5,533,349       08/357,931      12/16/94        07/09/96        06/18/01
5,564,433       08/359,183      12/19/94        10/15/96        06/19/01
5,612,073       08/378,515      01/26/95        03/18/97        06/15/01
5,612,722       08/601,384      02/14/96        03/18/97        06/15/01
5,628,691       08/513,218      08/10/95        05/13/97        06/15/01