Inventor · disambiguated record
Dennis E. Calkins
Also filed as: CALKINS DENNIS E · CALKINS DENNIS EARL
9 granted patents·105 citations·filing 1981–2000
88Inventor score
Top patents by PatentIndex Score
9 records- 0171US5951227ADeep water lowering apparatusMCDERMOTT SA J RAY·Filed 1998·Granted Sep 14, 1999·30 cites·4 claims
- 0260US4422799AMethod for installing submarine pipelines using a marine railway systemMCDERMOTT INC·Filed 1981·Granted Dec 27, 1983·18 cites·11 claims
- 0358US4951924ADeepwater subsea lowering/lifting systemMCDERMOTT INT INC·Filed 1989·Granted Aug 28, 1990·16 cites·3 claims
- 0454US4919393ADeepwater subsea lowering/lifting systemMCDERMOTT INT INC·Filed 1989·Granted Apr 24, 1990·14 cites·11 claims
- 0551US4838522ADeepwater subsea lowering/lifting systemMCDERMOTT INT INC·Filed 1988·Granted Jun 13, 1989·13 cites·3 claims
- 0649US6402428B1Pipeline recovery toolMCDERMOTT SA J RAY·Filed 2000·Granted Jun 11, 2002·7 cites·2 claims
- 0729US4775265ARemovable closure deviceMCDERMOTT INC·Filed 1987·Granted Oct 4, 1988·2 cites·6 claims
- 0828US5513929AFixed offshore platform structures, using small diameter, tensioned, well casing tiebacksMCDERMOTT INT INC·Filed 1994·Granted May 7, 1996·5 cites·2 claims
- 0924US4397582AMethod of creating a cold water conduit to be used in ocean thermal energy conversion systemsMCDERMOTT INC·Filed 1981·Granted Aug 9, 1983·0 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Dennis E. Calkins 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 →