Refiner for lactose and high lactose products
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 2, 2021
Grant Date -
Oct 15, 2020
app pub date -
May 30, 2017
filing date -
Jun 1, 2016
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
An example method for refining lactose may include washing lactose crystals in a lactose stream in an upstream wash stream including an upstream recirculating wash medium. Washed lactose crystals may be sieved from the upstream recirculating wash medium. The upstream recirculating wash medium may be recirculated back to the upstream wash stream. The washed lactose crystals may be discharged to a downstream wash stream comprising a downstream recirculating wash medium. An example system may include a plurality of refining stages. At least one refining stage may include a washing tank including a lactose crystal inlet and a crystal slurry outlet. The refining stage may include a pump to recirculate a wash stream from the crystal slurry outlet back to the washing tank at a predetermined flow rate. The refining stage includes a screen to separate washed lactose crystals from the wash stream.
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 | |
---|---|---|
KELLER TECHNOLOGIES INC | M327 CALLAWAY DRIVE MARSHFIELD WI 54449 |
International Classification(s)

- 2017 Application Filing Year
- B04B Class
- 144 Applications Filed
- 104 Patents Issued To-Date
- 72.23 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Keller, A Kent | Mantorville, US | 11 | 53 |
# of filed Patents : 11 Total Citations : 53 |
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Patent Citation Ranking
- 0 Citation Count
- B04B Class
- 0 % this patent is cited more than
- 4 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 2, 2025 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 2, 2029 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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