HIDEFUMI HIRAI
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 18, 2000 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 98 Total Citation Count
- Mar 14, 1983 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
| Upgrade to the Professional Level to View Top Patents for this Owner. Learn More |
Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5319134 Process for introducing a carboxyl group to an aromatic carboxylic acid or a derivative thereofOct 26, 92Jun 07, 94[C07C]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6051614 Method for preparing a non-aqueous dispersion of particles of a metal and/or a metal compoundExpiredDec 28, 92Apr 18, 00[B01F, B01D]
4902776 Preparation of poly-p-phenylene with (1) aluminum chloride and (2) CU(I) Cl or VCl.sub.3ExpiredJan 12, 88Feb 20, 90[C08G]
4888248 Colloidal metal dispersion, and a colloidal metal complexExpiredMay 07, 87Dec 19, 89[A61K, C12N, B01J, C08K]
4675309 Adsorbent for use in selective gas adsorption-separation and a process for producing the sameExpiredApr 21, 86Jun 23, 87[C07C, B01J, B01D]
4546094 Solid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixtureExpiredMar 08, 84Oct 08, 85[C07C, B01J, B01D]
Top Inventors for This Owner
| Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More |
We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.