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Jan Raczkowski — 3 Patents

TITechnicon Instruments: 2 patents #33 of 126Top 30%
PCPropper Manufacturing Co.: 1 patents #13 of 21Top 65%
Ossining, NY: #271 of 613 inventorsTop 45%
New York: #38,631 of 115,490 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Jan Raczkowski has been granted 3 US patents while listed as an inventor at Technicon Instruments. The first was granted in 1980 and the most recent in September 1993. Jan Raczkowski ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Jan Raczkowski in Ossining, NY, US.

Patents per Year

Patents granted per year, 1980 to 1993Bar chart with a peak of 1 patents in 1980.peak 11980: 1 patents19801989: 1 patents19891993: 1 patents1993

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5246752 Method and apparatus for drawing thermoplastic tubing — 1993-09-21
4857247 Method for drawing thermoplastic tubing — 1989-08-15
4212390 Wound clip rack Irving A. Speelman 1980-07-15

Frequent Collaborators

Irving A. Speelman1 shared

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Paul Sabatka3
Sergii Bomko3