Granted Patent
Utility
US 6,567,581
· Confirmation No. 7394
FIBER OPTIC DENSE WAVELENGTH DIVISION MULTIPLEXER UTILIZING A MULTI-STAGE PARALLEL CASCADE METHOD OF WAVELENGTH SEPARATION
Inventor:
Simon X.F. Cao
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⬇ PDF
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2021-04-26 | N570 |
Communication - Re: Power of Attorney (PTOL-308) | 1 | View | |
| 2021-04-26 | N570 |
Communication - Re: Power of Attorney (PTOL-308) | 1 | View | |
| 2021-04-22 | PA.. |
Power of Attorney | 2 | View | |
| 2021-04-22 | R3.73 |
Assignee showing of ownership per 37 CFR 3.73 | 3 | View | |
| 2021-04-22 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2001-06-14 | TRNA |
Transmittal of New Application | 2 | View | |
| 2001-06-14 | A.PE |
Preliminary Amendment | 27 | View | |
| 2001-06-14 | SPEC |
Specification | 13 | View | |
| 2001-06-14 | CLM |
Claims | 4 | View | |
| 2001-06-14 | ABST |
Abstract | 1 | View | |
| 2001-06-14 | DRW |
Drawings-only black and white line drawings | 13 | View | |
| 2001-06-14 | OATH |
Oath or Declaration filed | 1 | View |
Inventors
Simon X.F. Cao
San Mateo, CA
Attorneys & Agents of Record
Classification
USPC
385/24
Prosecution
- Examiner
- NGO, HUNG NHAT
- Art Unit
- 2874
- Customer No.
- 173986
- Docket No.
- 150287-03246
- Confirmation No.
- 7394
Publication
- Pub. No.
- US20020012494A1
- Pub. Date
- 2002-01-31
Patent Term Adjustment
-62days
II-VI INCORPORATED,
MARLOW INDUSTRIES, INC.,
EPIWORKS, INC.,
LIGHTSMYTH TECHNOLOGIES, INC.,
KAILIGHT PHOTONICS, INC.,
COADNA PHOTONICS, INC.,
OPTIUM CORPORATION,
FINISAR CORPORATION,
II-VI OPTICAL SYSTEMS, INC.,
M CUBED TECHNOLOGIES, INC.,
II-VI PHOTONICS (US), INC.,
II-VI DELAWARE, INC.,
II-VI OPTOELECTRONIC DEVICES, INC.,
PHOTOP TECHNOLOGIES, INC.
PATENT RELEASE AND REASSIGNMENT
Recorded 2022-07-05
from
COADNA PHOTONICS, INC.,
EPIWORKS, INC.,
FINISAR CORPORATION,
II-VI DELAWARE, INC.,
II-VI INCORPORATED,
II-VI OPTICAL SYSTEMS, INC.,
II-VI OPTOELECTRONIC DEVICES, INC.,
II-VI PHOTONICS (US), INC.,
KAILIGHT PHOTONICS, INC.,
LIGHTSMYTH TECHNOLOGIES, INC.,
M CUBED TECHNOLOGIES, INC.,
MARLOW INDUSTRIES, INC.,
OPTIUM CORPORATION,
PHOTOP TECHNOLOGIES, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS
Recorded 2019-09-25
RELEASE OF SECURITY INTEREST
Recorded 2014-05-21
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2014-03-28
from
AVANEX CORPORATION
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2014-03-21
PATENT SECURITY AGREEMENT
Recorded 2012-07-03
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Quick Facts
- Patent No.
- US 6,567,581
- App. No.
- 09/881,274
- Filed
- 2001-06-14
- Granted
- 2003-05-20
- Pub. No.
- US20020012494A1
- Examiner
- NGO, HUNG NHAT
- Art Unit
- 2874
- PTA
- -62 days
External Links