Device for measuring superfine particle masses
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 24, 2012
Grant Date -
Apr 8, 2010
app pub date -
Feb 27, 2008
filing date -
Mar 23, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device for measuring superfine particle masses including a quartz oscillator and an exposure system having at least two measuring chambers. Each of the at least two measuring chambers has a same geometry, a deposition surface for particles, and an aerosol feed directed at the respective disposition surface configured to feed an aerosol onto the respective deposition surface. At least one of the respective deposition surfaces is disposed on the quartz oscillator.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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FORSCHUNGSZENTRUM KARLSRUHE GMBH | 76133 KARLSRUHE |
International Classification(s)

- 2008 Application Filing Year
- G01G Class
- 142 Applications Filed
- 89 Patents Issued To-Date
- 62.68 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Muelhopt, Sonja | Karlsruhe, DE | 2 | 12 |
# of filed Patents : 2 Total Citations : 12 | |||
Paur, Hanns-Rudolf | Karlsruhe, DE | 10 | 60 |
# of filed Patents : 10 Total Citations : 60 | |||
Waescher, Thomas | Rauenberg, DE | 2 | 12 |
# of filed Patents : 2 Total Citations : 12 |
Cited Art Landscape
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Patent Citation Ranking
- 4 Citation Count
- G01G Class
- 1.80 % this patent is cited more than
- 13 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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Jun 23, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jan 10, 2018 | PD | Priority Date | |
Jan 09, 2018 | I | Issuance | |
Dec 20, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 03, 2015 | P | Published | |
Feb 06, 2015 | F | Filing | |
Jan 26, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SANO, KENJI;IMADA, TOSHIHIRO;REEL/FRAME:034915/0659 Owner name: KABUSHIKI KAISHA TOSHIBA, JAPAN Effective Date: Jan 26, 2015 |

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