Source: http://www.google.co.uk/patents/US7512521
Timestamp: 2015-04-27 09:06:36
Document Index: 303551542

Matched Legal Cases: ['art 2', 'Application No. 04', 'Application No. 04252479', 'art 4', 'Application No. 200410042268', 'Application No. 04252479', 'application No. 200410043322', 'application No. 200410042268', 'Application No. 04252805', 'Application No. 05826038']

Patent US7512521 - Intrinsically safe field maintenance tool with power islands - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA hand held configuration for coupling to a two wire process control loop for use in configuring and monitoring field units coupled to the two wire process control loop is provided which includes a power supply, and at least two power islands. The power islands are configured to electrically isolate...http://www.google.co.uk/patents/US7512521?utm_source=gb-gplus-sharePatent US7512521 - Intrinsically safe field maintenance tool with power islandsAdvanced Patent SearchPublication numberUS7512521 B2Publication typeGrantApplication numberUS 10/426,894Publication date31 Mar 2009Filing date30 Apr 2003Priority date30 Apr 2003Fee statusPaidAlso published asCN1598726A, CN1598726B, DE602004025168D1, EP1473685A2, EP1473685A3, EP1473685B1, US20040218326Publication number10426894, 426894, US 7512521 B2, US 7512521B2, US-B2-7512521, US7512521 B2, US7512521B2InventorsJoachim D�ren, G�nter K�mperOriginal AssigneeFisher-Rosemount Systems, Inc., R. Stahl Schaltgerate GmbhExport CitationBiBTeX, EndNote, RefManPatent Citations (103), Non-Patent Citations (53), Referenced by (1), Classifications (17), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetIntrinsically safe field maintenance tool with power islands
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No. 10/790,627, filed Mar. 6, 2003, Mathiowetz.53U.S. Office Action from related Applicaion No. 10,790,627.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS20110010120 *8 Jul 201013 Jan 2011Wehrs David LProcess variable transmitter with two-wire process control loop diagnostics* Cited by examinerClassifications U.S. Classification702/183International ClassificationG08C19/02, G05B23/02, G06F15/00, G05B23/00, G05B19/042, H02H3/08Cooperative ClassificationG08C19/02, G05B19/0426, G05B23/0213, G05B2219/23067, G05B2219/25428, G05B2219/23406, G05B2219/25006European ClassificationG05B23/02S2B, G08C19/02, G05B19/042PLegal EventsDateCodeEventDescription1 Oct 2012FPAYFee paymentYear of fee payment: 416 May 2006ASAssignmentOwner name: FISHER-ROSEMOUNT SYSTEMS, INC., TEXASFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUREN, JOACHIM;KAMPER, GUNTER;REEL/FRAME:017635/0495;SIGNING DATES FROM 20040722 TO 20040727Owner name: R. STAHL SCHALTGERATE GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUREN, JOACHIM;KAMPER, GUNTER;REEL/FRAME:017635/0495;SIGNING DATES FROM 20040722 TO 200407275 Aug 2004ASAssignmentOwner name: FISHER-ROSEMOUNT INC., TEXASFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUREN, JOACHIM;KAMPER, GUNTER;REEL/FRAME:015649/0858;SIGNING DATES FROM 20040722 TO 20040727Owner name: R. STAHL SCHALTGERATE GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DUREN, JOACHIM;KAMPER, GUNTER;REEL/FRAME:015649/0858;SIGNING DATES FROM 20040722 TO 20040727RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services