Tracking entities by means of hash values
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 21, 2017
Grant Date -
Aug 1, 2013
app pub date -
Jan 14, 2013
filing date -
Jan 30, 2012
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
Mechanisms for tracking an entity are provided. A time is determined by a sensor having a clock, the time being within a time slot in a series of time slots. First data of the time slot is provided and shared between a plurality of sensors. The sensor receives data from the movable entity. The sensor calculates identifying data from the received data for identifying the entity. Derivative identifying data is calculated by applying a modifying function using the provided first data for modifying the identifying data. The sensor calculates a hash value by taking the derivative identifying data as input. The sensor sends a message to a central server for determining the position of the entity, the message comprising the hash value and an identifier of the sensor.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
CN | B | CN103310358 | Jan 21, 2013 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | For following the tracks of the method and system of entity by hashed value | Dec 28, 2016 | |||
US | B2 | US10042818 | Nov 18, 2016 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT AS SECOND PUBLICATION | Tracking entities by means of hash values | Aug 07, 2018 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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INTERNATIONAL BUSINESS MACHINES CORPORATION | NEW ORCHARD ROAD ARMONK NY 10504 |
International Classification(s)

- 2013 Application Filing Year
- G07C Class
- 725 Applications Filed
- 581 Patents Issued To-Date
- 80.14 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Albano, Gherardo | Rome, IT | 8 | 188 |
# of filed Patents : 8 Total Citations : 188 | |||
De, Judicibus Dario | Rome, IT | 10 | 805 |
# of filed Patents : 10 Total Citations : 805 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- G07C Class
- 9.52 % this patent is cited more than
- 8 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 21, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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May 02, 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 |
May 02, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 27, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 27, 2022 |
Nov 15, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 27, 2018 | I | Issuance | |
Mar 07, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 14, 2017 | P | Published | |
May 30, 2017 | F | Filing | |
Jan 29, 2015 | PD | Priority Date |

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