KENKMAN, DONALD L.
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- May 10, 1988 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 1,978 Total Citation Count
- Dec 12, 1979 Earliest Filing
- 20 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Recent Publications
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4743545 Hollow porous microspheres containing biocatalystExpiredOct 03, 84May 10, 88[C12P, C12N, G01N, C07K]
4637990 Hollow porous microspheres as substrates and containers for catalysts and method of making sameExpiredMar 14, 85Jan 20, 87[B01J]
4582534 Metal microspheres, filamented hollow metal microspheres and articles produced therefromExpiredSep 15, 83Apr 15, 86[B22F]
4548196 Solar collector comprising transparent hollow plastic microspheres as insulation materialExpiredSep 30, 82Oct 22, 85[F24J]
4415512 Method and apparatus for producing hollow metal microspheres and microspheroidsExpiredMar 18, 81Nov 15, 83[C03B]
4303431 Method and apparatus for producing hollow microspheresExpiredMay 23, 80Dec 01, 81[C03C, C03B]
4303432 Method for compressing gaseous materials in a contained volumeExpiredAug 18, 80Dec 01, 81[C03C, C03B]
4303433 Centrifuge apparatus and method for producing hollow microspheresExpiredAug 18, 80Dec 01, 81[C03C, C03B]
4303603 Method and apparatus for producing hollow plastic microspheresExpiredJun 19, 80Dec 01, 81[B29D]
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