Robert R Hellman Sr
Inventor
Stats
- 6 US patents issued
- 6 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 6 US Patents Issued
- 6 US Applications Filed
- 48 Total Citation Count
- Apr 19, 1994 Most Recent Filing
- Mar 5, 1990 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| UNISON INDUSTRIES, LLC | 1
1 1 2 1 | 1990
1991 1992 1993 1994 |
Inventor Addresses
| Address | Duration |
|---|---|
| 35 Hawley Rd., Oxford, CT 06483 | Feb 26, 91 - Aug 29, 95 |
| Oxford, CT | Apr 12, 94 - Apr 12, 94 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B21C: | MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL | 1 |
| B21D: | WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING | 1 |
| B23K: | SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 5445361 | 1995 | Fluid flow valve | 2 |
| 5425261 | 1995 | Method for forming thin-wall tubing | 0 |
| 5320331 | 1994 | Method and apparatus for forming corrugations in tubing and a corrugated tube produced thereby | 5 |
| 5302789 | 1994 | Snap switch having low resistance | 3 |
| 5118121 | 1992 | Compound gasket useful for high temperature, high pressure service | 14 |
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