Patent Reinstated Due to the Acceptance of a
                      Late Maintenance Fee From 07/09/99

Patent           Serial            Filing          Issue          Granted
Number           Number            Date            Date           Date

4,537,762        06/551,484        11/14/83        08/27/85       07/09/99
4,792,291        07/094,682        09/09/87        12/20/88       07/13/99
4,855,725        07/291,433        12/28/88        08/08/89       07/12/99
4,897,186        07/322,644        03/13/89        01/30/90       07/13/99
4,897,924        07/233,951        08/19/88        02/06/90       07/15/99
4,922,724        07/322,187        03/13/89        05/08/90       07/15/99
4,946,595        07/243,319        09/09/88        08/07/90       07/14/99
4,961,327        07/360,686        06/02/89        10/09/90       07/13/99
4,973,227        07/367,025        06/16/89        11/27/90       07/13/99
4,981,010        07/401,627        08/31/89        01/01/91       07/12/99
4,995,878        07/219,140        07/15/88        02/26/91       07/14/99
5,039,628        07/479,487        02/12/90        08/13/91       07/09/99
5,165,647        07/718,998        06/21/91        11/24/92       07/12/99
5,167,209        07/846,618        03/05/92        12/01/92       07/13/99
5,169,152        07/799,194        11/27/91        12/08/92       07/15/99
5,169,360        07/598,099        10/16/90        12/08/92       07/13/99
5,178,602        07/756,924        09/09/91        01/12/93       07/12/99
5,189,957        07/690,855        04/24/91        03/02/93       07/12/99
5,200,640        07/743,986        08/12/91        04/06/93       07/13/99
5,213,554        07/724,205        07/01/91        05/25/93       07/13/99
5,221,923        07/795,260        11/19/91        06/22/93       07/15/99
5,234,529        07/774,557        10/10/91        08/10/93       07/13/99
5,238,683        07/441,521        11/24/89        08/24/93       07/12/99
5,240,833        07/787,778        11/06/91        08/31/93       07/13/99
5,241,631        07/749,362        08/23/91        08/31/93       07/09/99
5,244,539        07/826,133        01/27/92        09/14/93       07/12/99
5,245,281        07/274,999        09/15/88        09/14/93       07/13/99
5,257,462        07/847,647        03/06/92        11/02/93       07/13/99
5,259,267        07/882,758        05/11/92        11/09/93       07/15/99
5,263,921        08/003,432        01/12/93        11/23/93       07/14/99
5,275,342        07/753,089        08/30/91        01/04/94       07/13/99
5,287,210        07/820,752        01/13/92        02/15/94       07/15/99
5,294,568        07/867,299        04/10/92        03/15/94       07/13/99
5,295,483        07/777,433        10/11/91        03/22/94       07/12/99
5,300,934        07/937,360        08/27/92        04/05/94       07/15/99
5,301,280        07/416,225        10/02/89        04/05/94       07/09/99
5,318,081        08/021,254        02/23/93        06/07/94       07/13/99
5,323,421        07/954,172        09/30/92        06/21/94       07/12/99
5,327,885        08/018,058        02/16/93        07/12/94       07/14/99
5,329,638        07/938,434        08/31/92        07/19/94       07/15/99
5,329,669        07/845,145        03/03/92        07/19/94       07/09/99
5,330,713        07/804,803        12/09/91        07/19/94       07/09/99
5,331,546        07/709,751        06/03/91        07/19/94       07/13/99
5,334,380        07/910,868        06/30/92        08/02/94       07/13/99
5,335,407        08/024,403        03/01/93        08/09/94       07/15/99
5,339,225        08/014,641        02/08/93        08/16/94       07/14/99
5,346,618        08/051,608        04/23/93        09/13/94       07/09/99
5,350,504        07/992,668        12/18/92        09/27/94       07/15/99
5,350,900        07/914,774        07/15/92        09/27/94       07/12/99
5,357,004        08/195,036        02/14/94        10/18/94       07/13/99
5,357,486        07/989,372        12/02/92        10/18/94       07/12/99
5,361,240        07/550,520        07/10/90        11/01/94       07/12/99
5,365,686        07/901,014        12/29/92        11/22/94       07/15/99
5,368,433        08/091,554        07/14/93        11/29/94       07/15/99
5,373,186        08/236,726        04/29/94        12/13/94       07/13/99
5,376,313        07/915,162        07/20/92        12/27/94       07/15/99
5,381,460        08/175,753        12/30/93        01/10/95       07/12/99
5,386,481        08/155,428        11/19/93        01/31/95       07/15/99
5,387,289        07/950,088        09/22/92        02/07/95       07/12/99
5,394,089        08/150,278        11/10/93        02/28/95       07/13/99