Hydraulic drive system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 14, 2009
Grant Date -
Jul 20, 2006
app pub date -
Dec 1, 2005
filing date -
Dec 1, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydraulic drive system for an actuator uses a pair of pressure compensated hydraulic machines to control flow to and from the drive chambers of the actuator by varying the controlled pressure of one of the machines. The machines are mechanically coupled to permit energy recovery and charge an accumulator to store supplies energy. The drive system may be combined with other services including a transmission for incorporation in a vehicle. The transmission uses a pressure compensated supply and torque control of the wheels.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CONCENTRIC ROCKFORD INC.
International Classification(s)

- 2005 Application Filing Year
- F15B Class
- 226 Applications Filed
- 108 Patents Issued To-Date
- 47.79 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kadlicko, George | Rockford, US | 30 | 331 |
# of filed Patents : 30 Total Citations : 331 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 30 Citation Count
- F15B Class
- 95.85 % this patent is cited more than
- 16 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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Feb 01, 2021 | 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 01, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Dec 27, 2020 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Dec 27, 2020 |
Aug 17, 2020 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Dec 27, 2016 | I | Issuance | |
Dec 07, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 02, 2014 | P | Published | |
Mar 12, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ADAM, SCOTT CHRISTOPHER;REEL/FRAME:031374/0001 Owner name: CMTE DEVELOPMENT LIMITED, AUSTRALIA Effective Date: Mar 12, 2012 |
Feb 23, 2012 | F | Filing | |
Feb 25, 2011 | PD | Priority Date |

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