Inventor · disambiguated record
Walter A. Helm
Also filed as: HELM WALTER · HELM WALTER A
9 granted patents·555 citations·filing 1988–2000
92Inventor score
Top patents by PatentIndex Score
9 records- 0194US6310990B1Tunable optical structure featuring feedback controlCIDRA CORP·Filed 2000·Granted Oct 30, 2001·53 cites·22 claims
- 0293US6105690AMethod and apparatus for communicating with devices downhole in a well especially adapted for use as a bottom hole mud flow sensorAPS TECHNOLOGY INC·Filed 1998·Granted Aug 22, 2000·199 cites·40 claims
- 0389US5034929AMeans for varying MWD tool operating modes from the surfaceTELECO OILFIELD SERVICES INC·Filed 1989·Granted Jul 23, 1991·55 cites·12 claims
- 0489US4992787AMethod and apparatus for remote signal entry into measurement while drilling systemTELECO OILFIELD SERVICES INC·Filed 1988·Granted Feb 12, 1991·99 cites·8 claims
- 0580US5012412AMethod and apparatus for measurement of azimuth of a borehole while drillingTELECO OILFIELD SERVICES INC·Filed 1988·Granted Apr 30, 1991·63 cites·29 claims
- 0660US5835388AApparatus and method for optical transmission of serial data using a serial communications portTIMEX CORP·Filed 1996·Granted Nov 10, 1998·30 cites·9 claims
- 0755US5922058AOptical transmission system for generating first-edge-based serial data bit stream by inverting control output line at mark timesMICROSOFT CORP·Filed 1997·Granted Jul 13, 1999·17 cites·26 claims
- 0854US5128867AMethod and apparatus for determining inclination angle of a borehole while drillingTELECO OILFIELD SERVICES INC·Filed 1990·Granted Jul 7, 1992·28 cites·6 claims
- 0943US5777950AMethod and apparatus for transferring time information to a watchTIMEX CORP·Filed 1996·Granted Jul 7, 1998·11 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →