Approx. 200 Patents.
Too bad we cannot seem to monetize them. Patents US 5,572,218 6,111,549 6,209,808 6,311,995 6,397,147 6,469,663 6,539,303 6,570,534 6,625,209 6,643,576 6,711,501 6,744,404 6,762,714 6,784,830 6,804,587 6,865,465 6,876,920 6,880,643 6,882,314 7,023,381 7,027,918 7,138,944 7,142,956 7,162,348 7,205,939 7,225,060 7,256,388 7,268,727 7,271,766 7,277,792 7,286,084 7,292,185 7,292,186 7,310,064 7,315,278 7,333,053 7,339,524 7,339,525 7,339,526 7,342,538 7,345,627 7,373,231 7,382,318 7,385,554 7,388,539 7,400,294 7,400,956 7,429,952 7,437,230 7,451,030 7,460,942 7,468,697 7,489,270 7,504,995 7,511,667 7,532,160 7,535,402 7,548,804 7,561,967 7,586,438 7,605,749 7,648,004 7,653,399 7,656,352 7,683,830 7,689,354 7,693,659 7,760,136 7,808,428 7,835,832 7,885,745 7,948,769 8,000,381 8,018,376 8,085,196 8,102,325 8,125,529 8,138,970 8,140,223 8,174,437 8,184,050 8,190,337 8,214,111 8,217,833 8,265,826 8,271,194 8,307,535 8,311,696 8,334,804 8,386,129 8,401,704 8,456,356 8,459,131 8,489,291 8,521,372 8,548,649 8,583,315 8,583,326 8,594,879 8,634,993 8,639,416 8,649,930 8,676,620 8,686,900 8,718,874 8,768,558 8,781,685 8,803,735 8,897,973 8,924,152 9,002,565 9,002,566 9,141,111 9,162,703 9,173,337 9,880,562 9,886,038 10,168,714 10,209,714 10,241,215 10,239,555 D427,919 D429,173 D553,124 RE37,256 RE41,358 RE41,359 AU 2002325645 2002244539 2004320401 2008203618 2011211346 DE 1756687 FR 1756687 CA 2674398 2566604 2750022