Inventor · disambiguated record
Frank M. Willis
Also filed as: WILLIS FRANK · WILLIS FRANK M · WILLIS FRANK MARSDEN
20 granted patents·565 citations·filing 1976–2009
96Inventor score
Top patents by PatentIndex Score
20 records- 0193US7101477B1Liquid chromatography column having metal to metal sealsAGILENT TECHNOLOGIES INC·Filed 2005·Granted Sep 5, 2006·38 cites·21 claims
- 0292US5263105AConnector assembly for connecting an optical fiber cable to a socketDU PONT·Filed 1992·Granted Nov 16, 1993·121 cites·10 claims
- 0390US4647756AElectrical resistance heating element with signal means to indicate first useDU PONT·Filed 1983·Granted Mar 3, 1987·60 cites·19 claims
- 0486US7588683B2Column for liquid chromatography with adjustable compressionAGILENT TECHNOLOGIES INC·Filed 2005·Granted Sep 15, 2009·13 cites·19 claims
- 0580US6679989B2Integral, thru-bore, direct coupled high pressure liquid chromatography guard columnAGILENT TECHNOLOGIES INC·Filed 2001·Granted Jan 20, 2004·24 cites·11 claims
- 0679US8936723B2Chromatography column with large diameter end fitting openingsNICKERSON MARK A·Filed 2009·Granted Jan 20, 2015·7 cites·18 claims
- 0778US4616050AFiller-containing hardenable resin productsSIMMONS WALTER J·Filed 1985·Granted Oct 7, 1986·33 cites·31 claims
- 0876US5404417AApparatus for positioning the center of an optical fiber along a predetermined reference axisDU PONT·Filed 1993·Granted Apr 4, 1995·43 cites·33 claims
- 0976US5377289AOptical fiber connector having an apparatus for positioning the center of an optical fiber along a predetermined reference axisDU PONT·Filed 1993·Granted Dec 27, 1994·45 cites·61 claims
- 1069US5243673AOpto-electronic component having positioned optical fiber associated therewithDU PONT·Filed 1992·Granted Sep 7, 1993·33 cites·45 claims
- 1166US4633063AVented heating element for sterile cutting and welding together of thermoplastic tubesDU PONT·Filed 1984·Granted Dec 30, 1986·24 cites·19 claims
- 1266US4052939ATampable chub cartridgeDU PONT·Filed 1976·Granted Oct 11, 1977·20 cites·13 claims
- 1365US5587116AProcess for injection molding optical ferrulesDU PONT·Filed 1995·Granted Dec 24, 1996·21 cites·9 claims
- 1465US5568581AInjection molded optical ferrules and apparatus and processes for the preparation thereofDU PONT·Filed 1995·Granted Oct 22, 1996·20 cites·6 claims
- 1563US4325682AApparatus for discharging materialDU PONT·Filed 1979·Granted Apr 20, 1982·13 cites·10 claims
- 1656US5482451AApparatus for the preparation of optical ferrulesDU PONT·Filed 1994·Granted Jan 9, 1996·16 cites·9 claims
- 1755US4826276AOptical fiber feedthrough assembly having a rigidizing arrangement thereinDU PONT·Filed 1987·Granted May 2, 1989·19 cites·12 claims
- 1848US4636312APlasmapheresis filtration module having improved end plateDU PONT·Filed 1982·Granted Jan 13, 1987·12 cites·24 claims
- 1933US4639317APlasmapheresis filtration module having improved sealing meansDU PONT·Filed 1982·Granted Jan 27, 1987·3 cites·15 claims
- 2030US4640776APlasmapheresis filtration module having pressure balancing and sealing meansDU PONT·Filed 1982·Granted Feb 3, 1987·0 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Frank M. Willis files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →