280000156839 Program Products companies 0.000 description 3.238000006011 modification reactions Methods 0.000 description 21.150000001875 compounds Chemical class 0.000 claims description 10.230000000007 visual effect Effects 0.000 claims abstract description 19.239000000203 mixtures Substances 0.000 claims abstract description 32.238000004590 computer program Methods 0.000 claims abstract description 60.239000007787 solids Substances 0.000 claims abstract description 465.Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Application granted granted Critical Publication of US6392645B1 publication Critical patent/US6392645B1/en Assigned to IRONCAD, LLC. Assignors: VISIONARY DESIGN SYSTEMS, INC.
CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HAN, TAO-YANG, HUANG, CHIEN-MING Assigned to ALVENTIVE, INC. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Alventive Inc filed Critical Alventive Inc Priority to US09/267,774 priority Critical patent/US6392645B1/en Assigned to VISIONARY DESIGN SYSTEMS reassignment VISIONARY DESIGN SYSTEMS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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Google Patents Three dimensional geometric modeling systemÄownload PDF Info Publication number US6392645B1 US6392645B1 US09/267,774 US26777499A US6392645B1 US 6392645 B1 US6392645 B1 US 6392645B1 US 26777499 A US26777499 A US 26777499A US 6392645 B1 US6392645 B1 US 6392645B1 Authority US United States Prior art keywords shape data solid dimensional program Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US6392645B1 - Three dimensional geometric modeling system US6392645B1 - Three dimensional geometric modeling system