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Robert D. Klassen — 2 Patents

HTH-D Tech: 1 patents #7 of 10Top 70%

Kingston, CA: #321 of 799 inventorsTop 45%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

2 Patents All Time

Robert D. Klassen has been granted 2 US patents while listed as an inventor at H-D Tech. The first was granted in 1990 and the most recent in October 1995. Robert D. Klassen ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert D. Klassen in Kingston, ON, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5458863	Cold process for hydroxyapatite coatings	—	1995-10-17
4969981	Cell and method of operating a liquid-gas electrochemical cell	Derek J. Rogers, Allan James, Indresh Mathur, Edward B. Noonan	1990-11-13

Robert D. Klassen — 2 Patents

Issued Patents All Time

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