A method for manufacturing microneedle structures is disclosed using soft lithography and photolithography, in which micromold structures made of a photoresist material or PDMS are created. The micromold manufacturing occurs quite quickly, using inexpensive materials and processes. Once the molds are...http://www.google.se/patents/US20020133129?utm_source=gb-gplus-sharePatent US20020133129 - Method of manufacturing microneedle structures using soft lithography and photolithography