Multi-planar X-ray fluoroscopy system using radiofrequency fields
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 30, 1993
Grant Date -
N/A
app pub date -
Sep 3, 1991
filing date -
Sep 3, 1991
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
During an X-ray fluoroscopy procedure, the position and orientation of an invasive device, such as a catheter, are measured with radiofrequency fields. The invasive device has a transient coil attached near its end and is driven by a low power RF source to produce a dipole electromagnetic field that can be detected by an array of receive coils distributed around a region of interest of the subject. Multiple views of the instantaneous position of the invasive device are displayed by superposition of graphic symbols on multiple static X-ray images obtained at multiple view angles. Each view angle is displayed upon a different display means. The X-ray images are obtained only when deemed necessary by the operator to minimize X-ray dose. A single X-ray source and detector may be implemented since it is not necessary to obtain the X-ray images simultaneously.
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 | |
---|---|---|
GENERAL ELECTRIC COMPANY A CORP OF NEW YORK | SCHENECTADY NY 12301 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Darrow, Robert D | Scotia, NY | 28 | 6221 |
# of filed Patents : 28 Total Citations : 6221 | |||
Dumoulin, Charles L | Ballston Lake, NY | 78 | 7255 |
# of filed Patents : 78 Total Citations : 7255 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 437 Citation Count
- A61B Class
- 93.02 % this patent is cited more than
- 32 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Oct 13, 2014 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 17, 2014 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 17, 2014 |
Sep 17, 2014 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Apr 25, 2014 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 18, 2010 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Dec 02, 2009 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Feb 23, 2006 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Sep 17, 2002 | I | Issuance | |
Jun 27, 2000 | F | Filing | |
Jun 13, 2000 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GANTER, CHRISTIAN;REEL/FRAME:010900/0960 Owner name: GRAPHA-HOLDING AG, SWITZERLAND Effective Date: Jun 13, 2000 |
Jul 22, 1999 | PD | Priority Date |

Matter Detail

Renewals Detail
