John J. Prusak — 22 Patents at Rca

John J. Prusak has been granted 22 US patents while listed as an inventor at Rca. The first was granted in 1982 and the most recent in August 1985. John J. Prusak ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list John J. Prusak in Indianapolis, IN, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4534844	Electroforming apparatus	—	1985-08-13	$2,936,000
4522659	Method and apparatus for the manufacture of record stampers	—	1985-06-11	$1,354,000
4516301	Method and apparatus for removing flash from a molded recorded disc	Harry H. Westerman, Jr.	1985-05-14	$2,143,000
4512455	Disc turnover device	Joseph H. Thorn	1985-04-23	$1,249,000
4503806	Lubricant detector and measuring device	Brian E. Lock, Joseph H. Thorn	1985-03-12	$1,544,000
4479853	Method for the manufacture of record stampers	—	1984-10-30	$3,186,000
4478566	Apparatus for injection molding an article	Bhupendra P. Patel	1984-10-23	$2,856,000
4475966	Method and apparatus for manufacturing video disc caddy	Robert L. Turner	1984-10-09	$4,069,000
4470795	Apparatus for manufacturing a disc record package	—	1984-09-11	$1,354,000
4465453	Apparatus for manufacturing disc record package	Robert L. Turner	1984-08-14	$1,471,000
4463849	Video disc caddy	Bhupendra P. Patel	1984-08-07	$921,000
4436603	Apparatus for separating a replica from a matrix	Bhupendra P. Patel	1984-03-13	$1,315,000
4435922	Apparatus for grinding the back surfaces of record molding stampers	—	1984-03-13	$1,315,000
4414167	Method for molding an article	Bhupendra P. Patel	1983-11-08	$2,502,000
4402660	Apparatus for producing disc records with a molded-in center hole	—	1983-09-06	$3,418,000
4400245	Matrixing process for the manufacture of molded records	—	1983-08-23	$1,507,000
4385978	Cathode head	—	1983-05-31	$1,198,000
4362492	Apparatus for compression molding recorded discs	—	1982-12-07	$1,864,000
4341613	Apparatus for electroforming	Marshall L. Whitehurst	1982-07-27	$1,094,000
4327830	Record stamper protector	Bhupendra P. Patel	1982-05-04	$2,400,000
4316281	Spacer for stacked recorded discs	—	1982-02-16	$392,000
4309265	Cathode mask knob	—	1982-01-05	$1,177,000

John J. Prusak — 22 Patents

Issued Patents All Time

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