May.be.covered.under.one.or.more.of.the.following.U.S..patents:
4,797,96
5,426,690
5,650,790
5,660,269
5,754,407
5,758,289
5,893,034
5,92,968
6,070,082
6,25,277
6,782,098
6,788,920
6,953,8
7,023,76
Other.patents.pending.
5,434,905
5,49,745
5,66,780
5,663,98
5,768,345
5,787,356
5,95,227
5,929,598
6,253,088
6,34,278
6,788,953
6,839,550
7,030,89
7,46,60
5,493,605
5,533,00
5,67,248
5,696,47
5,794,52
5,80,466
5,930,720
5,960,358
6,48,209
6,68,05
6,889,84
6,90,27
7,203,307
7,206,403
62
5,574,727
5,58,598
5,77,32
5,732,355
5,825,6
5,864,69
5,987,330
6,044,28
6,67,35
6,74,630
6,907,094
6,94,940