Method for the manufacture of doped quartz glass
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Jul 21, 2015
filing date -
Jul 21, 2014
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
One aspect relates to a method for the manufacture of doped quartz glass. Moreover, one aspect relates to quartz glass obtainable according to the method including providing a soot body, treating the soot body with a gas, heating an intermediate product and vitrifying an intermediate product.
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 | |
---|---|---|
HERAEUS QUARZGLAS GMBH & CO KG | HERAEUSSTRASSE 12 - 14 HANAU 63450 |
International Classification(s)

- 2015 Application Filing Year
- C03C Class
- 892 Applications Filed
- 680 Patents Issued To-Date
- 76.24 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Schwerin, Malte | Halle/Saale, DE | 5 | 13 |
# of filed Patents : 5 Total Citations : 13 | |||
Trommer, Martin | Bitterfeld, DE | 41 | 189 |
# of filed Patents : 41 Total Citations : 189 | |||
Zwarg, Steffen | Wolfen, DE | 7 | 40 |
# of filed Patents : 7 Total Citations : 40 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- C03C Class
- 32.33 % 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 |
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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 |
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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 |
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Apr 07, 2025 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Sep 23, 2020 | 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 |
Aug 15, 2017 | I | Issuance | |
Jul 26, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Oct 06, 2016 | P | Published | |
Apr 30, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NAKAMURA, TATSUYA;REEL/FRAME:035624/0414 Owner name: KITAGAWA INDUSTRIES CO., LTD., JAPAN Effective Date: Apr 30, 2015 |
Nov 01, 2013 | F | Filing | |
Nov 12, 2012 | PD | Priority Date |

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