Ronald Moskowitz — 17 Patents at Ferrofluidics

Ronald Moskowitz has been granted 17 US patents while listed as an inventor at Ferrofluidics. The first was granted in 1980 and the most recent in October 1995. Ronald Moskowitz ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Ronald Moskowitz in Merrimack, NH, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5462685	Ferrofluid-cooled electromagnetic device and improved cooling method	Kuldip Raj	1995-10-31	$1,341,000
5461677	Loudspeaker	Kuldip Raj, James Bonvouloir	1995-10-24	$1,392,000
5429000	Ferrofluid pressure sensor	Kuldip Raj	1995-07-04
5018751	Stacked pole-piece ferrofluid seal apparatus	Kuldip Raj, Joseph Moses, James Bonvouloir, Frank Bloom	1991-05-28	$509,000
4927164	Ferrofluid seal with epoxy pole pieces	Kuldip Raj, Joseph Moses, Frank Bloom	1990-05-22	$407,000
4898480	Compact ferrofluidic electrically conducting sealed bearing	Kuldip Raj, Hanumaiah L. Gowda	1990-02-06	$388,000
4890850	Tapered ferrofluid seal	Kuldip Raj, Frank Bloom	1990-01-02	$434,000
4865334	Long-life multi-stage ferrofluid seals incorporating a ferrofluid reservoir	Kuldip Raj, James Bonvouloir, Frank Bloom	1989-09-12	$670,000
4830384	Compact long-life magnetic fluid seal	Kuldip Raj	1989-05-16	$633,000
4824122	Compact magnetic fluid low pressure seal	Kuldip Raj	1989-04-25	$628,000
4797013	Compact ferrofluidic electrically conducting sealed bearing	Kuldip Raj, Hanumaiah L. Gowda	1989-01-10	$417,000
4772032	Compact magnetic fluid low pressure seal	Kuldip Raj	1988-09-20	$572,000
4445696	Nonbursting magnetic liquid seals for high vacuum applications	Kuldip Raj, Raymond Rodier	1984-05-01	$929,000
4407518	Nonbursting multiple-stage ferrofluid seal and system	Kuldip Raj, James L. Kern	1983-10-04	$582,000
4252328	Self-activating ferrofluid seal and method	Kuldip Raj, Raoul Casciari, Alvan F. Chorney	1981-02-24
4252353	Self-activating ferrofluid seals	Kuldip Raj, Raoul Casciari, Alvan F. Chorney	1981-02-24
4200296	Ferrofluid centrifugal seal	Philip Stahl, Walter R. Reed	1980-04-29

Ronald Moskowitz — 17 Patents

Issued Patents All Time

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