| Std No. | Patent Owner | Contact for License | Patent Serial No. (if indicated) | Letter Date | Assurance Received | Date record entered or revised (if known) |
| 31 | Sparton Technology, 4901 Rockaway Blvd. SE, Rio Rancho, NM 87124-4469 | Jim Harper - Director of Contracts Tel: 505-892-5300 Fax: 505-892-5515 | 5,010,568 (US) | 18-Oct-94 | yes | |
| 287 | Agilent Technologies, Inc., 5301 Stevens Creek Blvd, Santa Clara CA 95051-7201 | Doug Kundrat-Director of Intellectual Property, MS: A1-PB, tel: +1-408-553-3052, email: Doug_Kundrat@agilent.com | not indicated | 6-Sep-2006 | yes | 23-Jan-2008 |
| 488.1 | National Instruments, 6504 Bridge Point Parkway, Austin, Texas 78730-5039 | Robert Canik GPIB Engineering Manager, Tel: 512-794-5519, Fax: 512-795-6954 | not indicated | 4-Nov-94 | yes | |
| 743 | Bellcore, 445 South Street MCC-1A150R, Morristown, New Jersey 07960-6438 | Lionel N. White, Counsel Intellectual Property tel: 201-829-2354 fax: 201-829-2366 | not indicated | 20-Aug-91 | yes | |
| 743 | Sage Instruments, 240 Airport Boulevard,Freedom, California 95019-2614 | Thomas J. Fisher Director of Operations, tel: 408-761-1000, fax: 408-761-1008 | 5,397,992 (US) | 15-May-95 | yes | |
| 743 | AT&T, 10 Independence Boulevard , P. O. Box 4911, Warren, New Jersey 07060-0911 | Ray C. Walborn - Manager, Intellectual Property, tel: 201-580-4000, fax: 201-580-6355 | not indicated | 1-Apr-91 | yes | |
| 754 | IBM Corporation, North Castle Drive, Armonk NY 10504 | Gerald T. Lane, Director of Standards, Intellectual Property & Licensing, tel: +1-914-765-4369; fax: +1-914-765-4420; email: gtlane@us.ibm.com | 6,437,715 (US) | 23-Jan-2003 | yes | 23-Jan-2003 |
| 754 | Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro OR 97124 | ATTN: Standards Licensing Dept., MS JF2-98, tel: +1-503-712-3397; fax: +1-503-264-2769; email: standards.licensing@intel.com; URL: http://www.intel.com/standards/licensing.htm | not specified | 24-Apr-2006 | yes | 24-Apr-2006 |