Inventor · disambiguated record
Ronald E. Pfeiffer
Also filed as: PEACHER STANLEY E · PFEIFFER RONALD E
13 granted patents·138 citations·filing 1978–1992
92Inventor score
Files withAMERICAN CYANAMID CO13
Top patents by PatentIndex Score
13 records- 0173US4318680ASpinnerette plate having multiple capillaries per counterbore for melt spinning fusion melts of acrylonitrile polymer and waterAMERICAN CYANAMID CO·Filed 1980·Granted Mar 9, 1982·16 cites·5 claims
- 0272US4220616AMelt-spinning acrylonitrile polymer fiber using spinnerette of high orifice densityAMERICAN CYANAMID CO·Filed 1978·Granted Sep 2, 1980·16 cites·5 claims
- 0371US4278415AApparatus for melt spinning hollow fibersAMERICAN CYANAMID CO·Filed 1979·Granted Jul 14, 1981·13 cites·2 claims
- 0468US4261945AMethod for providing shaped fiberAMERICAN CYANAMID CO·Filed 1979·Granted Apr 14, 1981·13 cites·5 claims
- 0567US4346053AProcess for melt-spinning hollow fibersAMERICAN CYANAMID CO·Filed 1981·Granted Aug 24, 1982·13 cites·4 claims
- 0665US4301107AMelt-spinning a plurality of acrylonitrile polymer fibersAMERICAN CYANAMID CO·Filed 1979·Granted Nov 17, 1981·11 cites·5 claims
- 0764US4316714AApparatus for preparing open structure fibersAMERICAN CYANAMID CO·Filed 1979·Granted Feb 23, 1982·10 cites·2 claims
- 0860US4220617AProcess for melt-spinning acrylonitrile polymer fiberAMERICAN CYANAMID CO·Filed 1978·Granted Sep 2, 1980·9 cites·3 claims
- 0957US4254076AMelt-spinning acrylonitrile polymer fiber using spinnerette plate with multiple capillaries per counterboreAMERICAN CYANAMID CO·Filed 1979·Granted Mar 3, 1981·8 cites·5 claims
- 1055US4394339AProcess for preparing open structure fibersAMERICAN CYANAMID CO·Filed 1980·Granted Jul 19, 1983·8 cites·2 claims
- 1145US5130195AReversible crimp bicomponent acrylic fibersAMERICAN CYANAMID CO·Filed 1990·Granted Jul 14, 1992·12 cites·5 claims
- 1240US5232647AProcess of making bicomponent acrylic fibers having reversible crimpAMERICAN CYANAMID CO·Filed 1992·Granted Aug 3, 1993·6 cites·5 claims
- 1331US4296175AHollow acrylonitrile polymer fiberAMERICAN CYANAMID CO·Filed 1980·Granted Oct 20, 1981·3 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Ronald E. Pfeiffer files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →