Inventor · disambiguated record
Gunnar Parmann
Also filed as: PARMANN GUNNAR
12 granted patents·645 citations·filing 1975–1999
94Inventor score
Top patents by PatentIndex Score
12 records- 0195US4299412AProduction of socket ends in thermoplastic pipesRIEBER & SON AS·Filed 1977·Granted Nov 10, 1981·90 cites·10 claims
- 0294US4368894AReinforced sealing rings for pipe jointsRIEBER & SON·Filed 1981·Granted Jan 18, 1983·116 cites·9 claims
- 0393US4818209AMould and sealing ringFORSHEDA AB·Filed 1987·Granted Apr 4, 1989·89 cites·13 claims
- 0492US4120521ACombined mould element and sealing ringRIEBER & SON PLASTIC IND AS·Filed 1977·Granted Oct 17, 1978·64 cites·6 claims
- 0592US4030872ACombined mould element and sealing ringRIEBER & SON PLASTIC IND AS·Filed 1975·Granted Jun 21, 1977·77 cites·32 claims
- 0687US6477111B1Method of making a marine seismic streamerSCHLUMBERGER TECHNOLOGY CORP·Filed 1999·Granted Nov 5, 2002·94 cites·34 claims
- 0783US4061459ACombined mold element and sealing ringPARMANN GUNNAR·Filed 1977·Granted Dec 6, 1977·39 cites·15 claims
- 0875US3965715AMethod and apparatus for bending thermoplastic pipesRIEBER & SON AS·Filed 1975·Granted Jun 29, 1976·25 cites·6 claims
- 0962US4336014ASystem for mounting a forming element on a mandrelRIEBER & SON AS·Filed 1980·Granted Jun 22, 1982·20 cites·13 claims
- 1053US4097573AMethod for bending thermoplastic pipesRIEBER & SON AS·Filed 1976·Granted Jun 27, 1978·13 cites·11 claims
- 1146US4975234AMethod for forming an end portion of a plastic pipeFORSHEDA AB·Filed 1989·Granted Dec 4, 1990·9 cites·8 claims
- 1246US4847094AApparatus for forming an end portion of a plastic pipeFORSHEDA AB·Filed 1987·Granted Jul 11, 1989·9 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →