EXHIBIT 4.6 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of March 23, 1999, is by and between Sepracor Inc., a Delaware corporation ("Sepracor"), and HemaSure Inc., a Delaware corporation (the...Registration Rights Agreement • April 1st, 1999 • Hemasure Inc • Surgical & medical instruments & apparatus • New York
EXHIBIT 4.7 WARRANT AGREEMENT THIS WARRANT AGREEMENT (this "Agreement"), dated as of March 23, 1999 is by and between HEMASURE INC., a Delaware corporation ("HemaSure"), and SEPRACOR INC., a Delaware corporation (the "Holder"). W I T N E S S E T H:...Warrant Agreement • April 1st, 1999 • Hemasure Inc • Surgical & medical instruments & apparatus • New York
EXHIBIT 10.33 SECURITIES PURCHASE AGREEMENT THIS SECURITIES PURCHASE AGREEMENT (this "Agreement") is made this 23 day of March, 1999 by and between Hemasure Inc., a Delaware corporation (the "Company"), and Sepracor Inc., a Delaware corporation (the...Securities Purchase Agreement • April 1st, 1999 • Hemasure Inc • Surgical & medical instruments & apparatus • New York
