John D Leighton
Inventor
Stats
- 18 total patents issued
- 18 total patents filed
- most recent filing
This is official USPTO record data
Details
- 18 Issued Patents
- 18 Filed Patents
- 189 Total Citation Count
- Sep 30, 2004 Most Recent Filing
- Sep 25, 1978 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| AGERE SYSTEMS GUARDIAN CORP. | 2 1 1 1 | 1999 2000 2001 2002 |
| LUCENT TECHNOLOGIES INC. | 5 | 1999 |
| LEIGHTON; BETTY | 1 1 | 1978 1979 |
| AGERE SYSTEMS INC. | 1 2 1 1 3 1 1 | 1998 1999 2000 2001 2002 2003 2004 |
| VTC INC. | 1 1 | 1996 1997 |
Inventor Addresses
| Address | Duration |
|---|---|
| 664 Rudgate, Bloomfield Hills, MI 48013 | Sep 13, 83 - Sep 13, 83 |
| Anoka, MN | Feb 24, 98 - Mar 04, 08 |
| Bloomfield Hills, MI | Oct 27, 81 - Nov 17, 81 |
Technology Profile
| Technology | # of Patents | |
|---|---|---|
| G05F: | SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES | 2 |
| G05G: | CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY | 1 |
| G11B: | INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER | 9 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 7,339,760 | 2008 | Integrated bias and offset recovery amplifier | 3 |
| 7,019,923 | 2006 | Pre-amplifier employing transistors having a diminished breakdown voltage and a disk drive and a Thevenin writer employing the same | 1 |
| 6,879,456 | 2005 | Disk drive writer with active reflection cancellation | 4 |
| 6,813,110 | 2004 | Disk drive writer with capacitive boost | 11 |
| 6,785,071 | 2004 | Disk drive writer waveform induced precompensation | 0 |
