Inventor · disambiguated record
Manfred A. A. Lupke
Also filed as: LUPKE MANFRED · LUPKE MANFRED A A · LUPKE MANFRED ARNO ALFRED
22 granted patents·659 citations·filing 1975–2015
96Inventor score
Top patents by PatentIndex Score
22 records- 0194US4141576AHeat shrinkable sleeve for coupling pipe sectionsLUPKE MANFRED ARNO ALFRED·Filed 1977·Granted Feb 27, 1979·77 cites·9 claims
- 0291US5296188AMethods for forming tubing utilizing suction and pneumatic pressure at the surface of the cooling plugCORMA INC·Filed 1992·Granted Mar 22, 1994·72 cites·10 claims
- 0389US4689174AProducing double-walled helically wound thermoplastic pipe with a corrugated cutter wall and a smooth inner wallLUPKE MANFRED ARNO ALFRED·Filed 1986·Granted Aug 25, 1987·70 cites·4 claims
- 0487US7691317B2Method and device for manufacturing a double-walled, thermoplastic tube with a connecting sleeveCORMA INC·Filed 2009·Granted Apr 6, 2010·8 cites·23 claims
- 0587US4500284AForming single wall bells in double wall pipeLUPKE MANFRED ARNO ALFRED·Filed 1983·Granted Feb 19, 1985·50 cites·2 claims
- 0685US7214051B2Device for manufacturing a double-walled thermoplastic pipe with a connecting sleeveLUPKE MANFRED ARNO ALFRED·Filed 2005·Granted May 8, 2007·9 cites·26 claims
- 0781US5330600AMethod of modifying corrugated or ribbed pipe to have a smooth outer wallCORMA INC·Filed 1992·Granted Jul 19, 1994·33 cites·13 claims
- 0881US4027674AMethod and device for removing concretions within human ductsTESSLER ARTHUR N·Filed 1975·Granted Jun 7, 1977·131 cites·7 claims
- 0972US5803132ASkinned double wall pipe and apparatus for making sameFiled 1996·Granted Sep 8, 1998·27 cites·3 claims
- 1068US5383998AApparatus for modifying corrugated or ribbed pipe to have a smooth outer wallCORMA INC·Filed 1994·Granted Jan 24, 1995·28 cites·15 claims
- 1165US4555230ACalibrator for use in the manufacture of double walled thermoplastic pipeLUPKE MANFRED ARNO ALFRED·Filed 1984·Granted Nov 26, 1985·22 cites·1 claims
- 1261US4292014AFeed mechanism comprising an endless member configured as a double helixLUPKE MANFRED ARNO ALFRED·Filed 1980·Granted Sep 29, 1981·16 cites·26 claims
- 1360US4521270AApparatus for forming spirally wound pipeLUPKE MANFRED ARNO ALFRED·Filed 1984·Granted Jun 4, 1985·19 cites·9 claims
- 1459US6401320B1Method of simultaneously making a plurality of metallic pipesFiled 2000·Granted Jun 11, 2002·7 cites·4 claims
- 1558US5545369AClamshell corrugators and the likeCORMA INC·Filed 1993·Granted Aug 13, 1996·19 cites·13 claims
- 1658US5466402AGap adjustment of a plastic flow channel in a plastic part forming deviceCORMA INC·Filed 1994·Granted Nov 14, 1995·19 cites·16 claims
- 1754US5186878AImprovements relating to cooling plugs in thermoplastic pipe forming apparatus and processCORMA INC·Filed 1992·Granted Feb 16, 1993·17 cites·9 claims
- 1851US4731138AApparatus for producing double-walled corrugated pipesLUPKE MANFRED ARNO ALFRED·Filed 1987·Granted Mar 15, 1988·14 cites·1 claims
- 1946US11034073B2Method for forming inline triple wall coupling connectorLUPKE MANFRED ARNO ALFRED·Filed 2015·Granted Jun 15, 2021·0 cites·4 claims
- 2041US5542834ASkinned double wall pipe and apparatus for making sameFiled 1994·Granted Aug 6, 1996·9 cites·4 claims
- 2139US5516482ATravelling mold tunnel apparatus for smooth walled pipeCORMA INC·Filed 1991·Granted May 14, 1996·8 cites·28 claims
- 2234US5846575APipe forming mandrel with multiple sleeve inner tubeFiled 1997·Granted Dec 8, 1998·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →