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Walter M. Kalback — 4 Patents

COConoco: 4 patents #81 of 638Top 15%
Ponca City, OK: #111 of 444 inventorsTop 25%
Oklahoma: #2,661 of 12,736 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Walter M. Kalback has been granted 4 US patents while listed as an inventor at Conoco. The first was granted in 1990 and the most recent in July 1996. Walter M. Kalback ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Walter M. Kalback in Ponca City, OK, US.

Patents per Year

Patents granted per year, 1990 to 1996Bar chart with a peak of 2 patents in 1993.peak 21990: 1 patents19901993: 2 patents19931996: 1 patents1996

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5538621 Solvated mesophase pitches H. Ernest Romine, Xavier Bourrat 1996-07-23
5259947 Solvated mesophase pitches H. Ernest Romine, Xavier Bourrat 1993-11-09
5198101 Process for the production of mesophase pitch — 1993-03-30
4904371 Process for the production of mesophase pitch — 1990-02-27

Frequent Collaborators

Xavier Bourrat2 shared
H. Ernest Romine2 shared

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