Daniel J. Vaughan — 20 Patents at Learonal

Daniel J. Vaughan has been granted 20 US patents while listed as an inventor at Learonal. The first was granted in 1982 and the most recent in July 1998. Daniel J. Vaughan ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Daniel J. Vaughan in Wilmington, DE, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5785833	Process for removing iron from tin-plating electrolytes	—	1998-07-28
5725743	Electrode system and use in electrolytic processes	—	1998-03-10
5716512	Method for manufacturing salts of metals	—	1998-02-10
5578182	Electrolytic production of hypophosphorous acid	Fred I. Nobel	1996-11-26	$1,307,000
5423960	Method and apparatus for manufacturing iodine-free iodides	—	1995-06-13
5419821	Process and equipment for reforming and maintaining electroless metal baths	—	1995-05-30
5310465	Electrodialytic oxydation-reduction of metals	—	1994-05-10
5264097	Electrodialytic conversion of complexes and salts of metal cations	—	1993-11-23
5258109	Electrodialytic conversion of complexes and salts of metal cations	—	1993-11-02
5198085	Restoration of alkali hydroxide etchants of aluminum	—	1993-03-30
5141610	Electrodialytic process for restoring sodium hydroxide etchants for aluminum	—	1992-08-25
5118399	Electrodialytic recovery process	—	1992-06-02
4985127	Electrodialytic conversion of multivalent metal salts using sulfonate ions	—	1991-01-15
4750525	End closure for flexible plastic tubes	—	1988-06-14
4684453	Purification of dye baths	—	1987-08-04
4654137	Multicompartmented cell with freely-extendible tubular membrane	—	1987-03-31
4652351	Electrochemical restoration of cyanide solutions	—	1987-03-24
4636288	Electrodialytic conversion of multivalent metal salts	—	1987-01-13
4439293	Electrodialytic purification process	—	1984-03-27
4325792	Purification process	—	1982-04-20

Daniel J. Vaughan — 20 Patents

Issued Patents All Time

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