Optical tandem photovoltaic cell panels
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2018
Issued Date -
N/A
app pub date -
Feb 29, 2012
filing date -
Oct 1, 2008
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A solar energy conversion device comprises a vertical stack of at least two panels stacked in a hierarchy from an upper panel to a lower panel with each of the panels including a matching array of solar cells having a different energy bandgap from other panels of solar cells in the vertical stack of panels. Each panel in the vertical stack may be arranged with one of the panels having solar cells with a higher energy bandgap situated in the hierarchy and in the stack above others of the panels containing solar cells with a lower energy bandgap. The top surface of the device is adapted for receiving solar energy incident upon the uppermost panel. Each upper panel absorbs a fraction of sunlight with larger solar photon energies larger than the energy bandgap thereof.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
INTERNATIONAL BUSINSS MACHINES CORPORATION | ARMONK NY |
International Classification(s)

- 2012 Application Filing Year
- H01L Class
- 20465 Applications Filed
- 18077 Patents Issued To-Date
- 88.34 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hovel, Harold J | Katonah, US | 66 | 1082 |
# of filed Patents : 66 Total Citations : 1082 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- H01L Class
- 0 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 30, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 30, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Feb 28, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 28, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jan 23, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jan 23, 2022 |
Sep 13, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jan 23, 2018 | I | Issuance | |
Jan 03, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 06, 2017 | P | Published | |
Jan 04, 2016 | F | Filing | |
Jan 04, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEFURGY, CHARLES R.;LOBO, PREETHAM M.;RIZZOLO, RICHARD F.;AND OTHERS;SIGNING DATES FROM 20151216 TO 20151218;REEL/FRAME:037400/0477 Owner name: INTERNATIONAL BUSINESS MACHINES CORPORATION, NEW Y |

Matter Detail

Renewals Detail
