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The patents and their transcriptions, four forums, the bench notes and the glossary — one index, ranked together, so a claim in a patent and the thread arguing about it come back side by side.
4 results for “austrian patents” · 14ms
Cited prior art · Sven Gunnar Svenstam · Granges Essem AB · United States · 1976
Vasby, Sweden 3,157,358 11/1964 Birkemeier............................. 237/1 73) Assignee: Granges Essem Aktiebolag, FOREIGN PATENTS OR APPLICATIONS Vasteras, Sweden 236,086 10/1964 Austria............... .......... 52/189 22 Filed: Sept. 24, 1975 535,480 2/1955 Belgium................................ 52/220 481,691 3/1952
Cited prior art · Luis R Pagan Fortis · United States · 1972
Luis R. Pagan Fortis, 1 12 Whitley Drive, Norristown, Pa. 1940 FOREIGN PATENTS OR APPLICATIONS (22 Filed: May 19, 1971 103,660 7|1926 Austria..................... 41.614 (21) Appl. No.: 144,983 Primary Examiner-Henry F. Raduazo 52 U.S. Cl...................
Patents citing this work · United States · 1979
Assignee: Bloom Engineering Company, Inc., FOREIGN PATENT DOCUMENTS Pittsburgh, Pa. 194514 4/1957 Austria ..................................... 431/187 (21) Appl. No.: 792,978 2324493 12/1973 Fed. Rep. of Germany ........... 431/352
Cited prior art · Willis Thompson Lawrence · Hooker Chemical Corp · United States · 1970
5. The apparatus of claim 1 in which said conduit UNITED STATES PATENTS forms a flat spiral and heating means are placed in such 2,687,626
